{"id":1009,"date":"2024-10-25T10:12:16","date_gmt":"2024-10-25T10:12:16","guid":{"rendered":"https:\/\/baselinkhosting.nl\/zuurstofplanten\/?page_id=1009"},"modified":"2025-06-04T09:18:52","modified_gmt":"2025-06-04T09:18:52","slug":"gekroesd-fonteinkruid","status":"publish","type":"page","link":"https:\/\/www.zuurstofplanten.net\/en\/zuurstof-planten\/fonteinkruid\/gekroesd-fonteinkruid\/","title":{"rendered":"Crucified pondweed"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1009\" class=\"elementor elementor-1009\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b6f752 e-flex e-con-boxed e-con e-parent\" data-id=\"1b6f752\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4657583 elementor-widget elementor-widget-heading\" data-id=\"4657583\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Crucified pondweed<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54a10c1 elementor-widget elementor-widget-breadcrumbs\" data-id=\"54a10c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/www.zuurstofplanten.net\/en\/\">Home<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1f87d6e6 e-flex e-con-boxed e-con e-parent\" data-id=\"1f87d6e6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4f0cf925 elementor-widget elementor-widget-heading\" data-id=\"4f0cf925\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Crucified Pondweed as an Oxygen Plant<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3ea1c7ba e-grid e-con-full e-con e-child\" data-id=\"3ea1c7ba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-20d3df1b elementor-widget elementor-widget-text-editor\" data-id=\"20d3df1b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ada Hofman talks about them in her book, and for good reason. Pondweeds are very good oxygen plants and great to use in the pond. Crucified Pondweed is therefore no exception. In addition, it is a nice addition to your stock of Glossy Pondweed. Many nutrients are absorbed to ensure rapid growth. Float and filamentous algae are given less chance and the water remains clearer. Cruciferous pondweed is also allelopathic. It secretes a substance that reduces algae growth. Apart from these properties, which are pleasant for pond life, they are graceful plants which also give the underwater landscape of your pond a beautiful appearance.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-298b941 elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"298b941\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"https:\/\/vijvermeester.nl\/gekroesd-fonteinkruid.html\" rel=\"nofollow\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/www.zuurstofplanten.net\/wp-content\/uploads\/2025\/01\/Gekroesd-fonteinkruid.png);\" role=\"img\" aria-label=\"Crucified pondweed\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tBuy Crucified Pondweed?\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tCrucified Pondweed is for sale through De Vijvermeester's webshop. Here you can find beautiful bunches of high quality.\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\tClick for the webshop of Vijvermeester.nl\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3422261f elementor-widget elementor-widget-heading\" data-id=\"3422261f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Cruciferous pondweed Properties<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39daadc2 elementor-widget elementor-widget-text-editor\" data-id=\"39daadc2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>position: sun<\/li><li>stem length: up to 1 metre<\/li><li>planting depth 50-100 cm<\/li><li>substrate: yes, necessary.<\/li><li>Appreciates nutrient-rich water.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27c8c97f elementor-widget elementor-widget-heading\" data-id=\"27c8c97f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Frequently asked questions<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2668a1ee elementor-widget elementor-widget-heading\" data-id=\"2668a1ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">What are the benefits of Cruciferous Pondweed for your pond?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fc3d287 elementor-widget elementor-widget-text-editor\" data-id=\"7fc3d287\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Crucified pondweed is less well known than Glossy pondweed but is certainly a good choice when it comes to oxygen production and algae control. Like Glossy pondweed, Cruciferous pondweed roots in the soil.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cfc2b95 elementor-widget elementor-widget-heading\" data-id=\"1cfc2b95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">What is the flowering time of Cruciferous Pondweed?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a50f049 elementor-widget elementor-widget-text-editor\" data-id=\"a50f049\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cruciferous pondweed (Potamogeton crispus) blooms from May to August. The small flowers are greenish and grow in spike-shaped clusters above the water surface. The flowers are subtle and contribute to reproduction, but the plant spreads mainly through vegetative growth of its stems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1decb1ef elementor-widget elementor-widget-heading\" data-id=\"1decb1ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Is Crucified Pondweed a native aquatic plant?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41a353c7 elementor-widget elementor-widget-text-editor\" data-id=\"41a353c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Yes, cruciferous pondweed is native to the Netherlands and is common in ditches, ponds and other still waters. The plant is well adapted to European waters and plays an important role in the aquatic environment. Crucified pondweed helps purify the water and provides hiding places for small aquatic animals.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76e830c6 elementor-widget elementor-widget-heading\" data-id=\"76e830c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">How should I plant Cruciferous Pondweed?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ed337f4 elementor-widget elementor-widget-text-editor\" data-id=\"7ed337f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cruciferous pondweed is planted by placing the stems directly in the water, where they will naturally take root in the muddy bottom. You can easily place the plant in pond soil in a pond basket or leave it loose in the water, where it will grow quickly. It is an easy-care plant that needs very little to become well established.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bc81c63 elementor-widget elementor-widget-heading\" data-id=\"7bc81c63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">How do I maintain Crucified Pondweed?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2aea2fef elementor-widget elementor-widget-text-editor\" data-id=\"2aea2fef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Crucified pondweed grows quickly and can overgrow other aquatic plants. For this reason, regular maintenance is important. It is advisable to prune the plant in summer and remove excess stems to maintain balance in the pond. By keeping pondweed in check, it contributes to water clarity and helps fight algae.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d07fc20 elementor-widget elementor-widget-heading\" data-id=\"d07fc20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Is Crucified Pondweed hardy?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a29fb30 elementor-widget elementor-widget-text-editor\" data-id=\"2a29fb30\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Yes, cruciferous pondweed is hardy and even survives harsh winters. The plant dies off above ground in winter, but its roots remain intact. In spring, it sprouts again and recovers quickly as soon as the water temperature rises again. Thanks to its winter hardiness, cruciferous pondweed is a durable choice for ponds.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba24d61 elementor-widget elementor-widget-heading\" data-id=\"ba24d61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">What is the planting depth of Cruciferous Pondweed?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69b584fa elementor-widget elementor-widget-text-editor\" data-id=\"69b584fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Crucified pondweed thrives at a depth of 30 cm to 1 metre. It needs sufficient light to grow well, so clear water is an advantage. The plant forms dense vegetation that can flourish in both shallow and deeper water layers, making it suitable for both small and larger ponds.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25f8d6cd elementor-widget elementor-widget-heading\" data-id=\"25f8d6cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Buy Crucified Pondweed?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13936488 elementor-widget elementor-widget-image\" data-id=\"13936488\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.zuurstofplanten.net\/wp-content\/uploads\/2025\/01\/Gekroesd-fonteinkruid-300x300.png\" class=\"attachment-medium size-medium wp-image-1349\" alt=\"Gekroesd fonteinkruid\" srcset=\"https:\/\/www.zuurstofplanten.net\/wp-content\/uploads\/2025\/01\/Gekroesd-fonteinkruid-300x300.png 300w, https:\/\/www.zuurstofplanten.net\/wp-content\/uploads\/2025\/01\/Gekroesd-fonteinkruid-150x150.png 150w, https:\/\/www.zuurstofplanten.net\/wp-content\/uploads\/2025\/01\/Gekroesd-fonteinkruid.png 700w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3eb45322 elementor-widget elementor-widget-text-editor\" data-id=\"3eb45322\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We have had good experiences with oxygen plants from De Vijvermeester. Cruciferous pondweed is for sale via De Vijvermeester's webshop. Here you can find beautiful bunches of high quality.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01c1acb elementor-align-left elementor-widget elementor-widget-button\" data-id=\"01c1acb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/vijvermeester.nl\/gekroesd-fonteinkruid.html\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-shopping-cart\" viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M528.12 301.319l47.273-208C578.806 78.301 567.391 64 551.99 64H159.208l-9.166-44.81C147.758 8.021 137.93 0 126.529 0H24C10.745 0 0 10.745 0 24v16c0 13.255 10.745 24 24 24h69.883l70.248 343.435C147.325 417.1 136 435.222 136 456c0 30.928 25.072 56 56 56s56-25.072 56-56c0-15.674-6.447-29.835-16.824-40h209.647C430.447 426.165 424 440.326 424 456c0 30.928 25.072 56 56 56s56-25.072 56-56c0-22.172-12.888-41.332-31.579-50.405l5.517-24.276c3.413-15.018-8.002-29.319-23.403-29.319H218.117l-6.545-32h293.145c11.206 0 20.92-7.754 23.403-18.681z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Click to visit the Vijvermeester.nl webshop<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Crucified Pondweed Crucified Pondweed as an Oxygen Plant Ada Hofman talks about it in her book, and for good reason. Pondweeds are very good oxygen plants and great to use in the pond. Cruciferous Pondweed is therefore no exception. In addition, it is a nice addition to your stock of Glossy Pondweed. Many nutrients are absorbed to make the [...]<\/p>","protected":false},"author":4,"featured_media":0,"parent":689,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"iawp_total_views":238,"footnotes":""},"class_list":["post-1009","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gekroesd Fonteinkruid | Zuurstofplanten.net<\/title>\n<meta name=\"description\" content=\"Gekroesd Fonteinkruid is een minder bekende vijverplant, maar is, net als glanzend fonteinkruid, goed voor zuurstof en algenbestrijding.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.zuurstofplanten.net\/en\/zuurstof-planten\/fonteinkruid\/gekroesd-fonteinkruid\/\" \/>\n<meta property=\"og:locale\" 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