This will be my fifth year growing cucamelons and the first year I’ve successfully overwintered them. Heralded as an exciting addition to cocktails by James Wong in 2012, I’ve spoken to many people who have grown cucamelons only to be disappointed with either the taste or harvest of these diminutive fruits. I am prepared to accept that for some (misguided!) individuals the fresh, citrusy sweetness of a ripe cucamelon isn’t an instant hit. Perhaps they aren’t big fans of cucumbers, limes or watermelons either, as the cucamelon combines snatches of all these favours within its own zingy freshness. What I won’t accept, is that cucamelons are dry, chewy, bland or sour. All these complaints suggest one thing – that the offending fruit has been harvested too late.
Cucamelons need careful watching – miss the couple of days in which the fruits attain their optimum flavour and texture, and you’ll always believe they aren’t worth the hype. In the bustle of modern life this window can easily be missed and cucamelons don’t help with their trailing habit, as the tiny fruits are often hidden behind the leaves of other plants, only to be discovered several days later well on their way to winning the ‘grow a giant cucamelon competition’ at the expense of their taste. The ideal size is about equal to a grape and the colour should be green with dark stripes. If the fruits grow any bigger and turn a paler green then the skins become tough and the juice rather insipid. I generally advise first-time cucamelon growers to try tasting a fruit when it is pea-sized. Then, when fruits are harvested a few days later, if they don’t taste as sweet and delicious as the first tiny fruit, they should be harvested earlier next time.
The other issue with cucamelons can be their tendency to have years when fruiting is reduced. I’ve had some bumper years where the vines fruit continuously throughout the summer and some where fruiting has been rather disappointing. I grow four pots in the greenhouse trained on wires around the top edge, although there are always side-shoots escaping to make friends with the tomatoes, chillies, lemongrass and other greenhouse residents. I’ve also tried them outside with some success (they grow well up supports but tend to fruit a little less than in the greenhouse). This year I fed and watered the greenhouse crops more and also made sure the door was left open to encourage pollinators in as flowers aren’t self-fertile and the crop was good. I suspect hand pollination might also increase yields, but I’ve not felt the need to attempt this yet.
I’ve also tried over-wintering cucamelons several times without success. A few years ago I attended a talk by James Wong at the Edible Garden Show where he mentioned that they could be over-wintered. Cucamelons produce long, tuberous roots which can supposedly be stored, like dahlia tubers, in a cool dry place over-winter. When I asked him at the end of the talk, James said he hadn’t tried it but this was the recommended way to store them. So the next winter I tried, but the tubers rotted in storage. The following year I left them in pots of compost in the greenhouse along with my dahlias. This was also unsuccessful (although the dahlias were fine.) I even found a tuber one spring in the vegetable bed which looked dormant but healthy. I potted it up, but it spent the whole summer in the pot without ever awakening.
This winter I thought I’d give it one last try before giving up on over-wintering altogether. Keeping the plants on the dry side in their pots in a cool spot indoors seems to have done the trick. I cut the vines back to about 10cm before bringing them in. One died back completely and the other has retained its vine but not grown further. Now both are showing some new growth and I do believe I’ve cracked it! Hopefully the over-wintered plants will crop earlier and more heavily than my seed sown plants – I’ll let you know how it goes.
Raw cucamelons add a tangy note of sharpness to salads without being sour. I think this is by far the best way to appreciate their flavour. My kids love them and they are a superb fruit for small fingers to harvest. One year we also pickled our cucamelons. They were good on sandwiches and burgers, but lost the sweet/sharp combination which is their defining feature. I haven’t tried them in cocktails, but they’re good in Pimms with strawberries and mint. Go on, you know it makes sense 🙂
So if you want to experience the delight of a fresh, juicy cucamelon it’s important to ensure good pollination. Then, once you have your harvested crop in your hand, ask yourself this question: ‘Do my cucamelons look big in this?’ If the answer is ‘yes’, then you’ve left it too late…
If you’d like to try growing these tiny taste bombs this year they are easy to raise from seed and are now available as plug plants. When I started growing cucamelons, seed wasn’t that readily available, but now it can be sourced from the following suppliers and many more…
Suttons Seeds (where I bought my first seeds, available as seeds or plug plants), Pennard Plants (also offers a great range of other unusual fruit/veg seeds and edible perennials), Chiltern Seeds (with a wide range of heritage and heirloom vegetables too) and Jungle Seeds).
Sow seeds indoors from the end of February until April and they will be ready to plant out in the greenhouse or the garden/allotment at the end of May. If you are planting them outside, consider slug protection as one small munch at the base of the vine can undo weeks of careful growing.
Maybe you disagree completely with my cucamelon favouritism? Have you experienced different problems from the ones I’ve discussed or do you find the taste too sour even in small fruits? Or perhaps cucamelons crop well for you and you’ve got alternative ways of using them in recipes? If so, I’d love to hear from you, so please do leave me a comment…
If you’d like to read about other more unusual crops, you could try:
- 10 Exciting Crops For A Modern Kitchen Garden
- Allotment 96B: The Unusual, The Innovative and The Just Plain Weird
- Overwintering Tea, Coffee and Other Tender Edible Perennials
- Confessions Of An Ocaholic
You can also follow the progress of my overwintered cucamelons on the blog by subscribing below…