All year round
At its best:
Jun, Jul, Aug
The optimum time for planting bare-root or container plants is between autumn and early spring. Pot-grown redcurrants can also be planted successfully when in leaf, if watered regular in dry weather. Dig lots of garden compost into a hole large enough to accommodate the root ball of the plant and knock it out of the pot.
Position the roots in the hole, backfill with soil and firm thoroughly. Redcurrants may be grown as bushes, spaced about 1m apart. If you're short on space, you could grow cordons, on a single stem, spaced 50cm apart. To do this, simply prune out all the stems to leave just one single, central leader as a framework.
With soft twine, carefully tie in the selected lead stem to a sturdy cane support using a figure-of-eight knot. As the plant grows during its first year, tie the main stem in at regular intervals. Once the stem reaches your desired height (up to a maximum of about 2m), prune back the growing tip to a bud.
Just one or two bushes will provide pounds of juicy fruits for puddings, jellies and sauces.
As the cordon grows, it will produce sideshoots which should be cut back to two buds from the base, in July every year, to encourage 'spurs' which will carry the fruit. As the main stem thickens, check the ties regularly and replace them if they're getting tight. Your cordon should fruit in the second year after planting.