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-2.5°
Slight frost tomorrow morning at 07:00. Frost temperatures between tomorrow 03:00 – 09:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 7 May Normal year · 20 years of data
Frost-free season 155 days 7 May – 9 Oct

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
25 Mar – 8 Apr
5-7 wk
13 May
1 wk after
8 Apr
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
4-6 wk
24 May
2 wk after
3 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
4 wk before
29 Apr
2 wk before
Cucumber
Cucumis sativus
Greenhouse
14 – 21 May
3-4 wk
11 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
7 – 14 May
4-5 wk
11 Jun
5 wk after
17 May
1 wk after
Butter bean
Phaseolus lunatus
Greenhouse
15 – 22 May
3-4 wk
12 Jun
5 wk after
Onion
Allium cepa (Cepa-gruppen)
12 Feb – 12 Mar
8-12 wk
7 May
Vid frost
20 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
20 May
1 wk after
Sweetcorn
Zea mays
Fleece
25 May – 1 Jun
3-4 wk
22 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
3-4 wk
6 Jun
4 wk after
20 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
4 wk before
29 Apr
2 wk before
Potato
Solanum tuberosum
13 – 27 May
4-6 wk
24 Jun
7 wk after
15 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
4 wk before
3 May
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
14 – 21 May
3-4 wk
11 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
3-4 wk
6 Jun
4 wk after
20 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
4-6 wk
24 May
2 wk after
Lettuce
Lactuca sativa
2 – 9 Apr
3-4 wk
30 Apr
1 wk before
3 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
19 Mar – 2 Apr
4-6 wk
30 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Mar – 8 Apr
2-4 wk
22 Apr
2 wk before
29 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
3 May
1 wk before
Spinach
Spinacia oleracea
25 Mar – 1 Apr
3-4 wk
22 Apr
2 wk before
24 Apr
3 wk before
Sweet potato
Ipomoea batatas
25 May – 8 Jun
4-6 wk
6 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
14 – 28 May
2-4 wk
11 Jun
5 wk after
28 May
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
4-6 wk
24 May
2 wk after
Pea
Pisum sativum
25 Mar – 1 Apr
3-4 wk
22 Apr
2 wk before
3 May
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
11 – 25 May
4-6 wk
22 Jun
7 wk after
Lemon balm
Melissa officinalis
26 Feb – 12 Mar
8-10 wk
7 May
Vid frost
1 Jun
3 wk after
Dill
Anethum graveolens
3 May
1 wk before
Chives
Allium schoenoprasum
16 Feb – 2 Mar
6-8 wk
13 Apr
4 wk before
3 May
1 wk before
Spearmint
Mentha spicata
28 Jan – 25 Feb
8-12 wk
22 Apr
2 wk before
1 Jun
3 wk after
Coriander
Coriandrum sativum
20 May
1 wk after
Sage
Salvia officinalis
28 Mar – 11 Apr
8-10 wk
6 Jun
4 wk after
Thyme
Thymus vulgaris
15 – 29 Mar
8-10 wk
24 May
2 wk after
Oregano
Origanum vulgare
18 Mar – 1 Apr
6-8 wk
13 May
1 wk after
1 Jun
3 wk after
Parsley
Petroselinum crispum
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
3 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
12 Feb – 12 Mar
10-14 wk
21 May
2 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
26 May – 2 Jun
3-4 wk
23 Jun
7 wk after
Cornflower
Centaurea cyanus
22 Apr
2 wk before
3 May
1 wk before
Statice
Limonium sinuatum
Greenhouse
20 Mar – 3 Apr
8-10 wk
29 May
3 wk after
Sweet William
Dianthus barbatus
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
15 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
4 Jun
4 wk after
Dahlia
Dahlia × pinnata
Fleece
10 – 24 Apr
6-8 wk
5 Jun
4 wk after
Dahlia (tubers)
Dahlia × pinnata
24 Apr – 22 May
4-8 wk
19 Jun
6 wk after
1 Jun
3 wk after
Foxglove
Digitalis purpurea
11 – 25 Feb
8-10 wk
22 Apr
2 wk before
20 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
31 Mar – 28 Apr
8-12 wk
23 Jun
7 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
16 – 30 Apr
6-8 wk
11 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
12 – 26 Mar
8-10 wk
21 May
2 wk after
Love in a mist
Nigella damascena
3 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
4 Jun
4 wk after
Tall verbena
Verbena bonariensis
Fleece
26 Feb – 26 Mar
8-12 wk
21 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
6 Mar – 3 Apr
8-12 wk
29 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
16 – 30 Apr
6-8 wk
11 Jun
5 wk after
Corn poppy
Papaver rhoeas
3 May
1 wk before
Snapdragon
Antirrhinum majus
5 Feb – 5 Mar
8-12 wk
30 Apr
1 wk before
15 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
2 – 16 Apr
8-10 wk
11 Jun
5 wk after
Sweet pea
Lathyrus odoratus
25 Feb – 18 Mar
5-8 wk
22 Apr
2 wk before
Stock
Matthiola incana
5 – 19 Mar
6-8 wk
30 Apr
1 wk before
20 May
1 wk after
Wormwood
Artemisia absinthium
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
20 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
5 wk after
Pansy
Viola × wittrockiana
2 – 16 Feb
8-10 wk
13 Apr
4 wk before
15 May
1 wk after
Petunia
Petunia
Greenhouse
6 Mar – 3 Apr
8-12 wk
29 May
3 wk after
Scabious
Scabiosa atropurpurea
Fleece
26 Mar – 9 Apr
6-8 wk
21 May
2 wk after
28 May
3 wk after
Zinnia
Zinnia elegans
Greenhouse
17 Apr – 1 May
4-6 wk
29 May
3 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
7 – 21 May
3-5 wk
11 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
17 Apr – 1 May
4-6 wk
29 May
3 wk after
17 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
31 Mar – 28 Apr
8-12 wk
23 Jun
7 wk after
Bee balm
Monarda didyma
12 Feb – 12 Mar
8-12 wk
7 May
Vid frost
1 Jun
3 wk after
Yarrow
Achillea millefolium
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
20 May
1 wk after
Safflower
Carthamus tinctorius
22 Apr
2 wk before
3 May
1 wk before
Iceland poppy
Papaver nudicaule
16 Feb – 2 Mar
6-8 wk
13 Apr
4 wk before
29 Apr
2 wk before
Bishop's flower
Ammi majus
6 – 20 Apr
4-6 wk
18 May
1 wk after
20 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
19 Mar – 2 Apr
10-12 wk
11 Jun
5 wk after
Sunflower
Helianthus annuus
Greenhouse
1 – 8 May
3-4 wk
29 May
3 wk after
6 May
China aster
Callistephus chinensis
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
17 May
1 wk after
Annual phlox
Phlox drummondii
17 Apr – 1 May
6-8 wk
12 Jun
5 wk after
17 Jun
5 wk after
Hollyhock
Alcea rosea
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
20 May
1 wk after
Delphinium
Delphinium elatum
1 – 29 Mar
8-12 wk
24 May
2 wk after
1 Jun
3 wk after
African marigold
Tagetes erecta
Greenhouse
3 – 17 Apr
6-8 wk
29 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
6-8 wk
6 Jun
4 wk after
17 Jun
5 wk after
Woodland sage
Salvia nemorosa
4 – 18 Mar
8-10 wk
13 May
1 wk after
1 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
2 – 30 Apr
6-10 wk
11 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
3 May
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
20 Mar – 3 Apr
8-10 wk
29 May
3 wk after
Water forget-me-not
Myosotis scorpioides
25 Feb – 11 Mar
6-8 wk
22 Apr
2 wk before
20 May
1 wk after
Current date Soon Date passed