New and Unread Tree-Mails
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Name: Alice Saint Helena Island, SC (Zone 9a)              ardesia Apr 7, 2018 4:32 PM CST |
| About 10 years ago I grew quite a few H. Rosa sinensis, I was even trialing them for a hybridizer. At that time the growers felt that, unlike other flowering plants, excess phosphorous was detrimental to good growth and flowering in tropical hibiscus. Yesterday I picked up a beautiful Tradewinds 'Mandarin Wind' and the tag with it said to fertilize with 5-10-5. Have the recommendations about phosphorous changed? What are you all feeding yours? Thanks, alice Minds are like parachutes; they work better when they are open. |
Name: Jay Nederland, Texas (Zone 9a)             Horntoad Apr 16, 2018 7:46 PM CST |
| Yes, phosphorus should be low for H. rosa-sinensis. According to Hidden Valley Hibiscus, you should have medium Nitrogen, low phosphorus, and high potassium. The fertilizer they sell is 17-5-24, so anything with a similar ration would be best. Personally, I have had pretty good success with Miracle Grow. wildflowersoftexas.com texasnatureonline.com |
Name: Alice Saint Helena Island, SC (Zone 9a) ardesia Apr 17, 2018 3:49 AM CST |
| Thanks Horntoad, that is what I remembered. We have an excess of phosphorus in our soils and water here, I didn't want to add to the problem. Minds are like parachutes; they work better when they are open. |
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