I agree with all said above. The only extra thing I do with mine is to scatter a handful of Vitax Q4 or any high potash fertilizer such as Sulphate of Potash around the area in early Spring to promote fruiting. I put the fertilizer on first, then mulch. I get a good crop of blackcurrants and if you treat yours right you should too.
Billericay - Essex
Knowledge is knowing that a tomato is a fruit. Wisdom is not putting it in a fruit salad.
I know you have probably thought of this but just to rule everything out as they look like they are in a nice open area, do you cover them? Birds love blackcurrants and will quickly strip them. Any netting also needs to let the pollinators in and one of our allotment neighbours wondered why they got no fruit I and it turned out they used the same netting as that designed to keep cabbage whites from brassica, so the poor pollinators couldn't get to the flowers.
Our blackcurrants were ripe and picked a couple of months ago now and with a warmer spring they can be ready even earlier.
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The only extra thing I do with mine is to scatter a handful of Vitax Q4 or any high potash fertilizer such as Sulphate of Potash around the area in early Spring to promote fruiting. I put the fertilizer on first, then mulch.
I get a good crop of blackcurrants and if you treat yours right you should too.
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Our blackcurrants were ripe and picked a couple of months ago now and with a warmer spring they can be ready even earlier.