Growing Melothria

Melothria scabra mouse melon, Mexican sour gherkin, Mexican mini cucumber
Other names
mouse melon, Mexican sour gherkin, Mexican mini cucumber
Botanical name
Melothria scabra
Family / Genus
Cucurbitaceae / Melothria
Plant category
Fruit vegetables
MelothriaOlgalele/Shutterstock.com

The fruits of the Mexican sour gherkin Melothria look like tiny melons and are great for snacking straight from the plant – kids love them too. The flavour is sour and cucumber-like.

Facts and figures

Light requirements
Sun / partial shade
Nutrient requirements
Medium feeder
Difficulty level
Easy
Culture (according to Gertrud Franck)
A - tall or wide crops, almost year-round
Culture (according to Sister C. Weinrich)
Companion crop
Growing period
100 days
Row spacing
30 cm
Plant spacing
40 cm
Growth height
150 - 300 cm
Sowing depth
2 cm
Germination temperature (minimum)
15 °C
Germination temperature (optimal)
18 - 25 °C
Germination type
Dark
Pre-growing period
45 days

Planting & harvest times of Melothria

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Pre-grow
Transplant
Harvest

Transplant to bed from Mid May to Late June. Pre-grow about 45 days before transplanting, approximately between Early April and Mid May. After a growing period of 100 days, harvest can begin around Mid July and continues until Late October.

Location and soil

Like other cucurbits, they prefer humus-rich, nutrient-rich soil and plenty of sun.

They definitely need a climbing support, as they can climb up to 3 m high. In a bed, a bean pole works well, or you can plant them in a pot with a trellis, or next to a pergola, a rose arch or something similar. The dangling mini cucumber-melons are also very decorative.

They also thrive in greenhouse conditions.

Good and bad companions of Melothria

The cucamelon prefers to grow on its own. It climbs up to three metres high and spreads vigorously, so give it its own trellis, a wigwam of bean poles or a spot along the fence rather than squeezing it in among other crops. Keep some distance from cucumbers, melons, squash and courgettes, as they share mildew and viruses that aphids carry from plant to plant.

Good neighbours
Basil
Batavia lettuce
Brussels sprouts
Butterhead lettuce
Celeriac
Celery
Chilli
Cutting celery
Dill
Fennel
Iceberg lettuce
Kohlrabi
Lollo biando / Lollo rosso
Maize
Oak leaf lettuce
Pepper
Pole bean
Radish
Spinach
Bad neighbours
Black radish
Courgette
Cucumber
Honeydew melon
Radish
Squash
Watermelon

Predecessors and successors of Melothria

The cucamelon belongs to the cucurbit family, so it only returns to the same spot after four years at the earliest. The same gap applies to cucumbers, melons, squash and courgettes, because they share diseases that survive on plant debris in the soil. Beans, peas, leeks or celery make good preceding crops, and you can still harvest a batch of lettuce from the bed until mid-May. Cabbage, tomatoes and peppers draw heavily on the soil and, like sweetcorn, count as poor preceding crops. In the year after the cucamelon, beetroot or chard fit in well.

Good predecessors
Batavia lettuce
Broad bean
Bush bean
Butterhead lettuce
Celeriac
Celery
Chickpea
Cutting celery
Iceberg lettuce
Leek
Lentils
Lollo biando / Lollo rosso
Lupin
Oak leaf lettuce
Oats
Pea
Pole bean
Romaine lettuce
Runner bean
Soya bean
Winter rye
Bad predecessors
Black kale
Broccoli
Brussels sprouts
Cauliflower
Chinese cabbage
Courgette
Cucumber
Flower Sprouts
Honeydew melon
Kale
Kohlrabi
Maize
Melothria
Pak choi
Pepper
Pointed cabbage
Red cabbage
Romanesco
Savoy cabbage
Squash
Tomato
Watermelon
White cabbage
Good successors
Alfalfa
Beetroot
Berseem clover
Crimson clover
Garlic
Leek
Onion
Persian clover
Phacelia
Red clover
Shallot
Spring onion
Subterranean clover
Swiss chard
White clover
Winter rye
Bad successors
Courgette
Cucumber
Honeydew melon
Melothria
Squash
Watermelon

Care and fertilising

Similar to cucumbers.
At first the plants grow very slowly, but at some point they really take off.

Diseases and pests

The Mexican sour gherkin is pleasingly tough. It can catch the same diseases as the cucumber, powdery mildew above all, but it falls ill far less often. If white coatings that wipe off appear on the leaves, cut off the affected leaves; the fruits stay untouched. Aphids like to settle on the shoot tips and can transmit viruses. Waterlogging does the Mexican sour gherkin no good, as the roots then rot.

Susceptible to
Angular leaf spot(low susceptibility)
Cucumber mosaic virus(low susceptibility)
Cucumber scab(low susceptibility)
Cucurbit anthracnose(low susceptibility)
Cucurbit downy mildew(low susceptibility)
Cucurbit powdery mildew(low susceptibility)
Gummy stem blight(low susceptibility)
Septoria leaf spot(low susceptibility)
Two-spotted spider mite(low susceptibility)

Harvest and processing

You can snack on them straight from the plant, toss them into a salad or pickle them like gherkins.

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