Blueberry Leaves Turning Black
11 years ago
Featured Answer
Sort by:Oldest
Comments (12)
- 11 years ago
Related Discussions
What's causing my blueberry leaves to turn reddish brown?
Comments (4)Well they were probably not exposed to a lot of light, the redness is a sign of stress. Maybe slowly expose them to the sun. Assume they are greenhouse grown and need acclimation to the outside environment. It's not that unusual, all should be fine. Increase sun exposure daily. You should do this with all new plants. Start them in shade and increase direct sun exposure over a 2 week period. Maybe now leave them in the shade a couple days, then one hour,direct sun next day 2 etc. Everything else you did seems proper, so my guess is acclimation, or possibly cold, but that looks like sun damage to me. And I agree pot looks dry, but so do mine as the top layer of these mixes often dry, but are very wet an inch down, so really do not need water. Keep it moist not wet or dry. If after 2 days in shade, the redness decreases, it was too quick a transition to sun exposure. If still red, it may be another problem....See MoreBlueberry leaves turning red in the summer
Comments (25)I think what's nice about AS is it probably allows the plant to uptake nitrogen in a high ph environment. As the ph is lowered while present. It's a good way to feed the plant. So ROFL, use this ASAP! Most good soils have the other elements. I also though use an organic fertilizer. Once plants are established, I probably will only use AS in the spring if at all. Currently I have a blueberry organic fertilizer, but once gone will use an off the shelf acid organic fertilizer. Inorganic or organic they work! I like using kelp to add trace elements. Tom Spellman mentions in an interview that he observed trees doing better with just 2 applications a year. I trust his word on that. I would like to grow more blueberries as they are a touch of a challange and I like growing plants that are not easy to grow. Actually these are if conditions are right. I probably should be growing orchids, but the flower payoff isn't enough anymore. Been there done that, got the t-shirt with cacti....See MoreBlueberry leaves turning yellow to almost white
Comments (19)Hi Inkfin: I post in Organic Rose forum, and saw the same problem when the nursery used FRESH PINE bark, at pH 4, as the growing medium for a young rose. The leaves turned almost white. I re-posted what you wrote: " I have been watering (rain water) everyday. This plant is in a well container having 50:50 peat moss and pine bark mulch." pH of rain water is 5.6, and pH of peat moss is 4. pH of pine bark mulch is lower than 4 when soaked in water. You got an EXTREMELY ACIDIC medium which result in "acid-burns" in your plant. A quick way to fix is to spread pulverized dolomitic lime (has both calcium & magnesium, at pH 9) ... that will balance the pH. Or use your city tap-water at pH 8.6 to correct the extremely-acidic environment. The good potting soil, the Pro-mix, has peat moss, or composted pine fines (less acidic), plus dolomitic lime (pH 9) and gypsum (neutral pH). See below link for the red-cabbage pH test I did in Organic Rose, which shows how acidic pine bark is. Fresh pine bark is even more acidic than peat moss, when mixed with rain-water. Optimal pH of blueberries is between 4.5 and 5.5 ... folks in Fig Forum tested pine-bark soaked in water, and it registered much lower than 4, plus killed a few plants. Here is a link that might be useful: Red-cabbage pH test of many samples...See MoreNeed help for my blueberries. The leaves veins turning red in summer.
Comments (4)They look pretty good to me. The bushes are small now so every leaf imperfection will be highly noticeable. They are most likely older leavers that need to drop at some point. Judge BB by the health of new tip growth and new shoots from the crown....See More- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
- 11 years ago
Related Stories
EDIBLE GARDENSSummer Crop: How to Grow Blueberries
Plant blueberries in spring or fall for garden beauty through three seasons — and a sweet superfood in summer
Full StoryLIFETurn Off the Video Games and Turn On Your Kid's Creativity
Going nuts planning summer activities? Kids overdosing on screen time? It may be time to foster more self-directed play
Full StoryFALL GARDENING5 Ways to Put Fall Leaves to Work in Your Garden
Improve your soil and yard the organic way with a valuable garden booster that grows on trees
Full StoryDECORATING GUIDES9 Easy Ways to Decorate With Autumn Leaves
Give your home a burst of color that can be used Halloween through Thanksgiving
Full StoryGARDENING GUIDESWhat's Wrong With My Plant? Leaves Often Hold the Clues
Learn how to identify common plant ailments by reading their leaves
Full StoryREMODELING GUIDESHouzz Tour: Turning a ’50s Ranch Into a Craftsman Bungalow
With a new second story and remodeled rooms, this Maryland home has plenty of space for family and friends
Full StoryLAUNDRY ROOMSRoom of the Day: The Laundry Room No One Wants to Leave
The Hardworking Home: Ocean views, vaulted ceilings and extensive counter and storage space make this hub a joy to work in
Full StoryHOME TECHTurn 'Obsolete' Tech Into Fun Home Help
Here's how to put your old Mac, Atari or Newton to work around the house
Full StoryHOUZZ TOURSMy Houzz: A Circle of Friends Turns a Dallas House Into a Home
Homeowners enlist help from friends to remodel, build an addition and decorate their home
Full Story
blueboy1977