Details taken from seed packets. I like to think of Spring as the months March, April and May.
late Spring
- Papalo & Quillquina (indoors)
March
- Pea – Greenshaft
- Broad Beans – Bunyards Exhibition
- Broad Beans – Karmazyn (indoors or outdoors)
- Broad Beans – Hangdown Green
- Broad Beans – The Sutton
- Broccoli – Early Purple Sprouting
- Cabbage – Primo (Golden Acre)
- Cabbage – Kalibos
- Cabbage – Greyhound
- Cabbage – Marner Storing Red
- Calabrese – Waltham (under glass)
- Calabrese – Romanesco
- Cauliflower – All the Year Round (indoors/outdoors)
- Kohl Rabi – Blusta
- Brussels Sprouts – Seven Hills (under glass)
- Brussels Sprouts – Bedford Fillbasket (from mid-March)
- Kohl Rabi – Blusta
- Carrot – Early Nantes
- Carrot – Purple Dragon
- Carrot – Amsterdam Forcing 3
- Parsnip – White King
- Radish – Sparkler
- Celeriac – Giant Prague (indoors)
- Leek – Swiss Giant Zermatt (under glass)
- Leek – Autumn Mammoth 2 – Snowstar
- Leek – Atlanta (under glass)
- Onion – Rossa Di Toscana
- Onion – Tonda Musona
- Onion – Cipollini Yellow
- Onion – Bedfordshire Champion
- Onion – Red Baron (indoors or outdoors)
- Onion – Walla Walla
- Onion – Purplette
- Leek – Carentan 2
- Leek – Blue Green Autumn Neptune
- Beetroot – Boltardy
- Beetroot – Chioggia Pink
- Lettuce – Webbs Wonderful (under glass/outdoors)
- Chicory – Variegata Di Castelfranco (under protection)
- Spinach – Oriento F1 Hybrid
- Sweet Pepper – Mini Bell Mixed (indoors)
- Okra – Clemson’s Spineless (indoors)
- Globe Artichoke – Green Globe Improved (indoors)
- Celery – Giant Red (with heat)
- Parsley – Hamburg
- Liquorice (indoors)
- Pot Marigold
- Rosemary
- Oregano
- Sage (under glass)
- Chives
- Garlic Chives
- Cutting Celery (under glass)
- Basil – Siam Queen (indoors)
- Basil – Lime (indoors)
- Lemon Grass (indoors)
- Tarragon (under glass)
- Dill (under glass)
April
- Pea – Greenshaft
- Broad Beans – Bunyards Exhibition
- Broad Beans – The Sutton
- Broad Beans – Karmazyn (indoors or outdoors)
- Broad Beans – Hangdown Green
- Carrot – Early Nantes
- Carrot – Amsterdam Forcing 3
- Carrot – Flakkee
- Carrot – Purple Dragon
- Parsnip – Avonresister
- Parsnip – White King
- Radish – Sparkler
- Celeriac – Giant Prague (indoors)
- Leek – Swiss Giant Zermatt (under glass/outside)
- Leek – Atlanta (under glass/outside)
- Leek – Autumn Mammoth 2 – Snowstar (indoors)
- Leek – Carentan 2
- Leek – Blue Green Autumn Neptune
- Onion – Walla Walla
- Onion – Tonda Musona
- Onion – Cipollini Yellow
- Onion – Rossa Di Toscana
- Onion – Bedfordshire Champion
- Onion – Red Baron (indoors or outdoors)
- Onion – Purplette
- Beetroot – Boltardy
- Beetroot – Detroit 2
- Beetroot – Chioggia Pink
- Kohl Rabi – Blusta
- Broccoli – Early Purple Sprouting
- Broccoli – Purple Sprouting
- Cabbage – Primo (Golden Acre)
- Cabbage – Kalibos
- Cabbage – Greyhound
- Cabbage – Marner Storing Red
- Cauliflower – Violet Queen
- Cauliflower – All the Year Round
- Broccoli – Romanesco Natalino (indoors/outdoors)
- Brussels Sprouts – Seven Hills
- Brussels Sprouts – Bedford Fillbasket (until mid-April)
- Calabrese – Waltham
- Calabrese – Romanesco
- Kohl Rabi – Blusta
- Turnip – Purple Top Milan
- Globe Artichoke – Green Globe Improved (indoors)
- Lettuce – Webbs Wonderful
- Chicory – Variegata Di Castelfranco (under protection)
- Spinach – Oriento F1 Hybrid
- Celery – Giant Red (with heat)
- Seakale – Lilywhite
- Sweetcorn – Golden Bantam (under glass)
- Sweetcorn – Strawberry Popcorn (under glass)
- Sweet Pepper – Mini Bell Mixed (indoors)
- Courgette – Albarellodi Sarzana (under glass)
- Winter Squash – Hokkaido (indoors)
- Cucumber – Crystal Lemon (under glass)
- Pumpkin – Rouge vif d’Etampes
- Okra – Clemson’s Spineless (indoors)
- Liquorice (indoors)
- Parsley – Hamburg
- Rosemary
- Oregano
- Sage (under glass)
- Chives
- Garlic Chives
- Cutting Celery (under glass/outdoors)
- Basil – Siam Queen (indoors)
- Basil – Lime (indoors)
- Lemon Grass (indoors)
- Cumin
- Tarragon (under glass)
- Lemon Coriander
May
- Pea – Greenshaft
- Broad Beans – Karmazyn
- Broad Beans – Hangdown Green (early May)
- Broad Beans – The Sutton
- Soya Beans – Elena (late May, indoors)
- Kohl Rabi – Blusta
- Broccoli – Early Purple Sprouting
- Broccoli – Purple Sprouting
- Broccoli – Romanesco Natalino (indoors/outdoors)
- Cauliflower – Violet Queen
- Cauliflower – F1 Trevi
- Cauliflower – All the Year Round
- Cabbage – Kalibos
- Brussels Sprouts – Seven Hills
- Kohl Rabi – Blusta
- Turnip – Purple Top Milan
- Onion – Cipollini Yellow
- Onion – Purplette
- Carrot – Early Nantes
- Carrot – Amsterdam Forcing 3
- Carrot – Flakkee
- Carrot – Purple Dragon
- Parsnip – Avonresister
- Parsnip – White King
- Radish – Sparkler
- Beetroot – Boltardy
- Beetroot – Detroit 2
- Beetroot – Chioggia Pink
- Lettuce – Webbs Wonderful
- Spinach – Oriento F1 Hybrid
- Chicory – Variegata Di Castelfranco
- Chicory – Grumolo Verde
- Japanese Greens – Mizuna
- Winter Squash – Hokkaido (indoors)
- Pumpkin – Rouge vif d’Etampes
- Cucumber – Crystal Lemon
- Courgette – Albarellodi Sarzana
- Seakale – Lilywhite
- Sweetcorn – Golden Bantam
- Sweetcorn – Strawberry Popcorn
- Liquorice (indoors)
- Rosemary
- Parsley – Hamburg
- Oregano
- Sage
- Chives
- Garlic Chives
- Cutting Celery (under glass/outdoors)
- Basil – Siam Queen (indoors)
- Basil – Lime (indoors)
- Dill
- Lemon Coriander