I enjoy trialling new crops, and this season one of the most outstanding plants at ‘Bellis’ has been the West Indian gherkin, Cucumis anguria.
This trial had a shaky start, with only one seed germinating from the packet I bought from Eden seeds. I gave it well composted, freely draining soil in a raised bed in a sunny position. Sown on 24th October, I planted my seedling in December.
I attempted to tame this scrambling vine by training it up a bamboo wigwam. It looked fine, neatly tied in place with jute twine, but it kept spilling downwards. I decided to let nature take its course, and it formed a groundcover, starting to flower in January. By the beginning of February it had completely colonised the adjacent 10 square metre vegetable bed, and produced its first prickly fruit.
You’ll need to wear gloves when handling this plant, because the hairs can penetrate skin. The fruit have slightly coarser prickles. By using a pair of scissors (or sharp secateurs) it’s possible to remove individual fruit, and by using either gloves, or the scissors, you can pick them up by the stalk and place them in a basket without getting prickled. One trick to eating them without getting prickled is to place a fruit into a tea towel and then to rub them all over. This neatly removes the prickles.
Fruit must be picked regularly. If you don’t, they put all their energy into seed production and plants die younger. Picking encourages further fruiting and a bigger harvest.
Young fruit can be eaten whole, and taste very sweet. But leave them on the vine for two or three days too long and their skin becomes a bit tough and the seed harden, making them less pleasant eating.
Between February and April this single plant produced almost ten kilos of fruit, and productivity increased during autumn. On 21st April I picked 8.4 kg, on 9.5.12 it was 2.09kg, and on 13.5.12 I picked 4kg to give away to visitors at the Open Day. The final picking was on 23rd May, when I removed the vine for composting, and that yielded 6.2kg fruit.
So, over four months, a single gherkin provided a 30.69 kg crop from ten square metres of soil. Not bad…
Mum can’t remember Nan’s recipe for making pickling vinegar, but we do remember what she put in it, so I’ve added 3 tsp sugar, 6 peppercorns, and 6 cloves to 400ml malt vinegar.
West Indian gherkin, Cucumis anguria
- Best climate: Warm temperate, subtropical, tropical;
- Seed saving: Yes. Select the best fruits, let them mature fully, bringing them indoors before any autumn frost. Scoop out seed, wash free of pulp. Dry seed on a plate or on kitchen towelling. Dry thoroughly;
- Sowing: It is recommended that seed of cucumbers (and their relatives) are chilled for a day or two in the fridge crisper (that’s roughly at 4C) before sowing to improve germination. A temperature of 1C is ideal. Like all cucumbers, seedlings resent root disturbance. Sow seed individually in pots:
Caution: Seedlings are toxic. This is a natural pest-repellant plant!
- Planting: Plant around the longest day of the year because fruiting increases as day length decreases;
- Pest problems: I’ve only seen two vegetable bugs sucking sap from a couple of fruit. Seems to be trouble-free;
- Disease problems: Watering in the morning allows foliage to dry out before sunset, a precaution against mildew, a serious disease of the cucumber family. Watering alternate days in dry weather helps prevent fruit from sitting on damp soil, leading to rotting;
- Feeding: Compost-rich soil, plus a foliar feed with seaweed each month;
- In season: A distinctly day-length sensitive crop, starting to produce a good return from March onwards;
- Eat: raw, cooked or pickled;
A mystery plant. Also known as maxixe, badunga, cohombroly, prickly cucumber, and burr gherkin, the West Indian gherkin probably originated in tropical America, but it has never been observed growing in the wild.
I acquired mine from Eden Seeds.
23rd May 2012