Chayote
Sechium edule (Jacq.) Sw.
Botanical family: Cucurbitaceae
Sechium edule, the christophine of the West Indies, the chouchou of Réunion. This very vigorous climbing cucurbit, native to Mesoamerica (southern Mexico), bears a green fruit. Source: Vieira et al. (2019), Food Chemistry.
Full sun, warm and sheltered
Loose, rich, well-drained
Regular and generous in summer
Frost-tender, perennial in mild climates, annual elsewhere
Frost-tender in your zone
One plant bears both male and female flowers; bees carry the pollen
One plant is enough for a crop
Role in permaculture
A generous, multi-purpose plant: from a single perennial rootstock (a tuberous crown), vines climb each year over a trellis, fence or arbour, occupying the vertical layer and providing shade. Everything is edible: the fruit, the young shoots and tender leaves (cooked like spinach), and the tuberous root. You plant the whole fruit, which sprouts on itself. Very productive. Sources: SNHF, chayote fact sheet; jardipartage.fr.
Companions
No companion planting is documented for this plant: no recommended neighbour, no neighbour to avoid.
Seasons & availability
Chayotes picked in autumn, September to November, before the frosts; the fruit keeps a few weeks somewhere cool.
Available: September, October, November, December.
Guidance for the oceanic / temperate climate; it may vary with your region, altitude, exposure and growing method.
Sources
- Garden Organic, « Chayote, christophine, chocho, mirlton, vegetable pear » (gardenorganic.org.uk/expert-advice/how-to-grow/growing-guides/vegetables-herbs-guides/how-to-grow-chayote)
- La Ferme de Sainte Marthe, « Réussir la culture de la Christophine ou de la Chayotte » (fermedesaintemarthe.com/en/blogs/comment-reussir-la-culture-de/reussir-la-culture-de-la-christophine-ou-de-la-chayotte)
Nutritional & medicinal properties
For educational purposes. Not a substitute for medical advice. Effects depend on the form, the dose and personal context.
Precautions & contraindications
The sap of the fruit's skin can dry out or make the hands tingle when peeling (a frequently cited culinary precaution): peel under water or with gloves. It is a food and not a treatment: a small exploratory trial associated chayote supplementation with a rise in markers of antioxidant defence in elderly people with metabolic syndrome (Gavia-García et al., 2023, Nutrients, DOI 10.3390/nu15194106), but these isolated data do not establish a health claim, and the other leads (antidiabetic, anti-inflammatory) rest mainly on in vitro or animal studies. For any health question, refer to a professional.
Family behaviour: Cucurbitaceae
In general, Cucurbitaceae are trailing and hungry for organic matter: they need water, warmth and a compost-rich soil. Their large leaves cover the soil and limit evaporation, the role they play in the Three Sisters guild (maize + bean + squash).
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Species & varieties
The best-known species and varieties in France.
Common varieties
Keep in mind
A frost-tender plant: outside mild climates (southern France, the Mediterranean coast), grow it as an annual or overwinter the rootstock (thick mulch, or a pot brought indoors before autumn). In frost-free, humid climates (overseas), its vigour can make it invasive, prune it.
A note on rigour: many companion pairings are gardening folklore; this note sums up what the sources say, where there are any.
Key takeaways
- • Prefers full sun, warm and sheltered exposure.
- • Ideal soil: loose, rich, well-drained.