Details obtained from seed packets. I like to think of Summer as the months June, July and August.
early Summer
- Carrots – Blanche à Collet Vert Hors Terre
- Red Giant Mustard
mid-Summer
- Carrots – Blanche à Collet Vert Hors Terre
- Red Giant Mustard
late Summer
- Red Giant Mustard
- Japanese Radish – unnamed variety
June
- Pea – Greenshaft
- Broad Beans – The Sutton
- Soya Beans – Elena (early June, indoors)
- Carrot – Early Nantes
- Carrot – Amsterdam Forcing 3
- Carrot – Flakkee
- Carrot – Purple Dragon
- Onion – Cipollini Yellow
- Onion – Purplette
- Parsnip – Avonresister
- Radish – Sparkler
- Beetroot – Boltardy
- Beetroot – Detroit 2
- Beetroot – Chioggia Pink
- Kohl Rabi – Blusta
- Turnip – Purple Top Milan
- Kohl Rabi – Blusta
- Cauliflower – Patriot
- Cauliflower – F1 Trevi
- Cauliflower – All the Year Round
- Broccoli – Romanesco Natalino
- Lettuce – Webbs Wonderful
- Spinach – Oriento F1 Hybrid
- Japanese Greens – Mizuna
- Chicory – Variegata Di Castelfranco
- Chicory – Grumolo Verde
- Liquorice (indoors)
- Sage
- Cutting Celery (under glass/outdoors)
- Basil – Siam Queen (indoors)
- Lemon Coriander
July
- Cabbage – Durham Early
- Broccoli – Romanesco Natalino
- Carrot – Early Nantes
- Carrot – Amsterdam Forcing 3
- Carrot – Flakkee
- Onion – Cipollini Yellow
- Radish – Sparkler
- Beetroot – Boltardy
- Beetroot – Detroit 2
- Beetroot – Chioggia Pink
- Turnip – Purple Top Milan
- Lettuce – Webbs Wonderful
- Spinach – Oriento F1 Hybrid
- Japanese Greens – Mizuna
- Chicory – Variegata Di Castelfranco
- Chicory – Grumolo Verde
August
- Cabbage – Durham Early
- Turnip – Purple Top Milan
- Radish – Sparkler
- Spinach – Medania
- Spinach – Oriento F1 Hybrid
- Japanese Greens – Mizuna
- Lettuce – Webbs Wonderful
- Lettuce – Arctic King
- Chicory – Variegata Di Castelfranco
- Chicory – Grumolo Verde