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Avatar for Sarakay13
Jun 13, 2020 6:55 PM CST
Thread OP
Anna, TX (50 miles north of Da
We bought this little blackberry bush and it took off all spring and even in north Texas sun, but now with the constant heat and no more rain, this little one has started to turn red/brown. Does this mean there is a deficiency in the soil or that it's getting too much sun? We live in zone 8 and the plant has morning/afternoon sun and is in a 1/2 whisky barrel
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Jun 13, 2020 10:12 PM CST
Name: sumire
Reno, Nevada (Zone 6a)

How often do you water the barrel? How much do you water? It looks like sun stress to me, but lack of water sometimes looks similar.
Last edited by sumire Jun 13, 2020 10:15 PM Icon for preview
Avatar for luis_pr
Jun 14, 2020 1:42 AM CST
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Azaleas Salvias Roses Plumerias Region: Northeast US Region: New Hampshire
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Because of the red color in the leaves, I would check for magnesium deficiency and add either Epsom salts or magnesium sulfate.
Avatar for oneeyeluke
Jun 15, 2020 8:40 AM CST
Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
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You have it planted too deep in the soil. Remove the top 1 or 2 inches of soil off the top and allow it to dry out for a while.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
Jun 15, 2020 3:01 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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Unless you found your potting soil in a third world country, there is no magnesium deficiency. Don't add Epsom salt.

You could bury the entire blackberry plant and it would root all over the stem and pop up in more places.

Those are stress colors but, I suspect this stress is caused by too much sun and lack of water. Blackberry bushes can handle too much sun if they have enough water. The newest leaf looks better. Is it shaded? Are you keepig the soil moist?

Wild blackberry bushes are always found along creeks, and rivers and near ponds or growing on seeps. They like water.
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Jun 15, 2020 3:02 PM CST
Name: sumire
Reno, Nevada (Zone 6a)
I agree
Avatar for Dirtmechanic
Jun 15, 2020 3:32 PM CST
canada 4b (Zone 8a)
The blackberry bushes we have come in 2 stages. This year's green lush and non productive stages (next years berries) and this years productive but nasty tattered stage. They remind me of a salmon giving its last energy to swimming upstream for spawning and then dying. Calcium Nitrate now in June after the berries are gone and 13-13-13 in the early spring is all we do.
Jun 15, 2020 3:57 PM CST
Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Region: Belgium Composter Region: Europe Ferns Hostas Irises
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You practically answered your own question: no more rain.

Give it some, end of story.
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