Back from her travels in Mexico before Christmas, MsMarmiteLover presented me with a small bag of jicama seeds. Jicama (Pachyrrizus erosus) is widely eaten in Mexico: its roots are peeled and sliced to eat raw, often with a squeeze of lime and some chilli. They are crisp and crunchy and taste fresh like apple, or water chestnuts. The seeds are very hard to come by in the UK, and here is our chance to try to raise a crop in London.
She knows I like a challenge.
Jicama is strictly speaking a tropical plant. It's a legume and in Mexico, and other Central American countries, it grows as a vine up to about 2m high. The very decorative blue or white flowers, reminiscent of wisteria, must unfortunately be removed if you are growing the plant as an vegetable crop. Taking the flowers makes the plant expend its energy developing the edible roots. It is only the roots which can be eaten: the beanpods and the seeds are poisonous.
To get these plants going in the UK, we need to get them going early. Soaking the seed for 24 hours prior to sowing helps with germination. They'll benefit from heat too, so I'll start the seeds in modules in the heated propagator and position it on the sunniest south-facing windowsill.
|Soaking the seed for 24 hours before sowing will|
They need well-drained soil, loamy and/or sandy to help the roots develop smoothly, and also water in the growing months - irrigating the greenhouse isn't a problem - and after that, we just need a nice long warm summer. One like 2016 would do nicely, in fact.
Try Jungle Seeds or Chiltern Seeds in the UK.