How to Force Rhubarb

rhubarb forcer
If you’d like to get an earlier crop of rhubarb now is a good time to force it. Choose an  established rhubarb in your garden and simply cover the crown with a forcing jar, upturned dustbin or very large pot. Doing this creates a dark and warm environment inside, forcing the stems into premature growth. Restricted light creates baby pink stalks which taste less tart and not as fibrous, ready approximately 8 weeks after covering.
forced rhubarb stems
However, once you force a crown you should allow it to crop naturally the following year (preferably two years of recovery), forcing it year after year could seriously weaken it. Before forcing, be sure to clear away the area around the base of the crown, removing decaying leaves and weeds to avoid the rhubarb crown rotting. Add a mulch of homemade compost or well-rotted manure to give a boost of nutrients.

Timperley Early rhubarb beginning to grow in winter

A tip is to grow 3 crowns (providing you have the space), allow one to recover from being forced the previous year, force one and let the other crop naturally, when it should. A good variety for forcing is Victoria.
rhubarb january
Timperley Early rhubarb in our kitchen garden 8th January 2017
Our favourite rhubarb variety to grow is ‘Timperley Early’, it starts cropping naturally as early as March. If you grow this variety you have to get a wiggle on and force it earlier than other varieties to produce an earlier crop, usually December for cropping in February. As you can see, our young crowns (planted last year) are already well on their way to producing some fine stalks! They’re not established enough to start forcing them yet, it’ll be another year or two before we can use the forcing jars on them.

Forced Rhubarb is Ready

In January I forced my crown of Timperley Early rhubarb, using my rather stylish forcing jar. Stems are ready to harvest once the leaves reach the top of the forcer. The sweet aroma of rhubarb filled the air as I pulled pink tender stems from the ground early this morning.

A bowl of warm rhubarb crumble is just what’s needed to cheer up such a wet and miserable-looking day.