Weak blueberry plants

efeuerMay 14, 2014

I have three blueberry plants growing in the bed with a mix of other shrubs. New Jersey is prime blueberry growing country, but my plants are not doing all that well.(It hasn't helped that the deer had eaten half of them!)

In general, the backyard pH, according to my last test from the agricultural station, was 6.2. I fed the plants last spring with Miracid, but we allowed them to set some fruit, which I think they were too weak to handle. They have flowered again this spring but I plan to disbud but most if not all. The plants only have one or two branches, and are only about 2 feet high.

I was wondering if I should top dress with some sulfur in addition to the Miracid. I would really like to see one or two vigorous new branches coming up from the base, although maybe it is too late in the spring for that. Not sure what to do to perk these plants up. Any suggestions appreciated.

Thank you for reporting this comment. Undo
Bradybb WA-Zone8

Yes,that will be okay with the Sulfur and your fertilizer or a little Ammonium Sulfate. Brady

    Bookmark   May 14, 2014 at 12:03PM
Thank you for reporting this comment. Undo
fruitnut Z7 4500ft SW TX

Sounds like they aren't getting enough fertilizer. Try applying some every week. Just be sure it's not too concentrated and they have plenty of water. They should grow 2-3ft a yr if pushed with fertilizer.

    Bookmark   May 14, 2014 at 12:34PM
Thank you for reporting this comment. Undo
efeuer

Are there granular fertilizers for acid loving plants like blueberries? I'm not sure I will have the time to follow through on weekly feedings.
Liz

    Bookmark   May 14, 2014 at 3:31PM
Thank you for reporting this comment. Undo
fruitnut Z7 4500ft SW TX

The linked below from Amazon should increase your plants growth.

Here is a link that might be useful: controlled release acid loving fertilizer

    Bookmark   May 14, 2014 at 3:44PM
Thank you for reporting this comment. Undo
pharmachad

I would also try some ferrous sulfate. They are
being deprived of iron with the higher Ph. Are the
leaves yellow or pale green?

    Bookmark   May 14, 2014 at 8:41PM
Thank you for reporting this comment. Undo
efeuer

I have elemental sulfur. Is there a difference between the ferrous sulfate and the sulfur powder?

    Bookmark   May 15, 2014 at 10:01AM
Thank you for reporting this comment. Undo
ericwi

Blueberry shrubs will thrive if the soil pH is down around 4.5. There should be some vegetable fiber, or organic matter, in the soil, to feed the fungi that live in symbiosis with the blueberry roots. If these conditions are met, and if the shrubs are given enough water, they should approximately double in size every year, until they are about 5 years in the ground. Here in Madison, Wisconsin, we have naturally alkaline soil, with pH around 7.6, so I have to lower the pH around each blueberry shrub in order to keep them growing. Since the shrubs are scattered around the yard, at various locations, I do multiple pH tests every year, about 10 soil tests total. To keep the cost of testing down, I do my own pH testing, using bromocresol green indicator solution. A five dollar bottle might do 100 tests. Add in the cost of the filter paper, and the DI water, and each pH test might cost around 25 cents. I am using agricultural sulfur to lower soil pH. This is a slow method for lowering pH, and it can take two years for an application of sulfur to be completely metabolized by soil bacteria. But there are two advantages to this method: 1-sulfur, in 50 lb bags, is inexpensive, and 2-sulfur is relatively non-toxic and safe to store.

    Bookmark   May 15, 2014 at 10:05AM
Thank you for reporting this comment. Undo
charina(6b)

Iron sulfate has come up a couple times recently. My understanding is that the benefit of iron sulfate is not the addition of iron to the soil chemistry. The bb's still cannot use the iron if the pH remains high. The beneficial function is that it lowers pH more quickly than ammonium sulfate our elemental sulfur.

    Bookmark   May 15, 2014 at 11:26AM
Thank you for reporting this comment. Undo
Prachi(6b (NJ))

I use osmocote on my blueberries and keep them mulched with pine needles and peat moss ..

but more than that I wanted to tell you to look up Dimeo Farms if you have room for more blueberry bushes... they sell mature 3year old plants for $10 each.... they are picky with their timing... b/c they need to keep someone available to pick up the plants but I interplanted young blueberries with 3 YO mature ones so I could have some blueberries last year.

    Bookmark   May 15, 2014 at 1:16PM
Thank you for reporting this comment. Undo
hoosier318

A trick you might want to try for a few days, that jolted some life previously into mine that were ailing. This may sound crazy, but brew a pot of coffee then make your mixture with 1/3 coffee and 2/3 water. Then water your blueberries with this mixture. I also add coffee grounds saved from where I work to mulch. To my understanding the coffee grounds have already been spent when the coffee was brewed, but the coffee is actually where the acidity goes. I saw this suggestion a while back and like I said it seems to throw some life into struggling blueberries. Of course as most suggest, a soil analysis and doing exactly what your blueberries need is a better way than hit or miss.

    Bookmark   May 31, 2014 at 11:06AM
Sign Up to comment
More Discussions
WHO called glyphosate a "probable carcinogen"
More and more studies seem to be coming out against...
canadianplant
My Spupreme plum turns into Alderman!
At Plant Hill Nursery! They don't have a email address,...
Konrad___far_north
Suburban backyard "orchard" (Z6 SE NY)
Hello all. I have a new to me house and yard (Zone...
cottage_cheese_z6ny
can you scrape off canker
i've read that when growing season is strong, such...
johndoug
Walnut scion wanted
I know it is getting late but mine are not budding...
jerry63
Sponsored Products
Seaflora Sea Glass Rectangular: 5 Ft. 6 In. x 8 Ft. 6 In. Rug
Bellacor
Outdoor Lighting. Twin Head Bird of Paradise Bronze Solar LED Path Light
$29.97 | Home Depot
Gun Metal Check Metal 14-inch Planter (Set of 2)
Overstock.com
Progress Lighting Path & Landscape Lights Low Voltage 50-watt Black Landscape
$85.77 | Home Depot
Light Purple Decorative Rail Planter
$14.99 | zulily
Tall Banana Tree
FRONTGATE
Silk 38-inch Delphinium Flower Arrangement
Overstock.com
Ecco! Fruit Holder by Alessi
$155.00 | Lumens
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™