Cucurbita pepo 'Jemmer'
courgette 'Jemmer'
A large, vigorous annual, 1.2m tall and wide, producing a short, fleshy, horizontal stem and large, deeply lobed, dark green leaves with silver markings. The stems and leaf undersides have sharp bristles. Large, yellow, edible flowers, male and female separate, appear in summer followed by slim, smooth-skinned, cylindrical, yellow fruit eaten as courgettes or summer squash
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Size
Ultimate height
1–1.5 metresTime to ultimate height
1 yearUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Grey Silver Green | |||
|---|---|---|---|---|
| Summer | Yellow | Grey Silver Green | Yellow | |
| Autumn | Yellow | Grey Silver Green | Yellow | |
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H2Botanical details
- Family
- Cucurbitaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy, Trailing
- Potentially harmful
- Humans/Pets: If crop is bitter, don't eat or feed to pets. Wear gloves and other protective equipment when handling
- Genus
A small genus of climbing or trailing, annual herbaceous fruits. Several edible species are cultivated for food and other uses. Native to Central and South America. Solitary, star-shaped flowers are usually golden-yellow. Leaves are palmately lobed, covered with tiny, prickly hairs
- Name status
Accepted
How to grow
Cultivation
Start seeds off indoors from mid-April, or outdoors after all risk of frost has passed. Grow in soil enriched with compost or well-rotted manure, or in a peat-free growing bag, or large tub of peat-free multipurpose compost. Keep well-watered and feed every 10-14 days with a high potash liquid fertiliser once the first fruits start to swell. See courgette cultivation
Propagation
Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice
Suggested planting locations and garden types
- Patio and container plants
- Wildlife gardens
Pruning
No pruning required
Pests
Diseases
May be susceptible to grey moulds on the fruit and powdery mildews on the foliage but this cultivar has some resistance
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