Ask a Question
Notify Me On Question Update
Email this Question
I have much vinca minor (dwarf periwinkle) planted about 20 years ago as ground cover in my yard. Some is in full sun, some is in part sun/part shade. Some small areas of the vinca (3-4 feet in diameter) in several places in the yard have begun the most recent two Springs looking yellow/pale green, not deep green like the rest of the gardens. Neither have they flowered. A couple of the small yellow/pale green areas e thinned, and some of the plants died. The veins in the leaves of the unhealthy plants are green, but the leaves are yellow/pale green. They have remained thus all summer. They don't turn brown and dry and die. I have treated with fertilizer and snail bait, but neither has had any effect on the unhealthy looking plants. Are these plants deficient in some nutrient? Healthy plants I planted in the bare areas had a hard time establishing but did eventually and have not paled. What should I do? I don't want the problem to spread. The periwinkle has added a great texture to the yard.
Rate This FAQ
From the symptoms you are describing it sounds like your Vinca has iron chlorosis. This is a problem that some ornamental plants have with accessing the iron in the soil because of our typically high pH levels. Treating for this condition can be challenging and often the best control method is to use plants that are iron efficient. Below I have included a link to a fact sheet about iron chlorosis that contains more information on the condition as well as treatment options and recommendations.
Submit Your Suggestion
Other Questions In This Topic
- Our golden delicious apple tree drops fruit through the entire season. What are we doing wrong? It is located in our garden area and gets plenty of water. Thank you for your help.
- We recently purchased new sod for our yard. It came with small redish brown beetles. I asked the sod company what they were and they didn't know. Are these beetles bad? Will they kill my lawn?
- I have a young (~3 year old) brown turkey fig. I planted it last fall and it survived! the winter. It is producing small figs now but the leaves have a brownish gray powdery looking substance on them. It doesn't rub off but looks like powdery spots. Any clue what it might be or what I should do? The leaves remain green and look healthy. This appeared after the recent heavy rains.
- I have a flame amur maple approx 5 feet high and has been planted since spring of '07. It has turned a very pale yellow color and has several branches where the leaves look like they have been burned. It is getting sufficient water. I've noticed that other flame maples stay green and I have read that it should. I don't know what is wrong with it. Help. It also did this last summer. I have applied some iron and it did green it up a little more but not much.
- I have beautiful hosta and fern plants growing outside. How do I protect them so they will survive the winter? Do I need to dig them up and bring them inside?
- I have grubs in my yard. Any suggestions?
- I just recently moved into a home that has these terrible "soda straw" type weeds that I can't get rid of. They pop apart and look like tall drinking straws. I have sprayed them with multiple rounds of poison (extra strength!) and dug them out by hand 2 or three times. They are coming back stronger than ever. What should I do?
- I want to plant a lilac hedge. I've never done lilacs before - how far apart should I plant them? Can I do a double row for a thicker hedge? If so, how far apart should the rows be? How fast do they grow? Do they need special care (they will be pretty close to a fairly busy road)? Can I plant them now, or should I wait until it's a little warmer? What are their fertilizer and water requirements? Will they be useful as a bit of a wind- and soundbreak? Thank you.