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-1.4°
Last 24h: Slight frost recorded this morning at 06:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 4 May Normal year · 20 years of data
Frost-free season 153 days 4 May – 4 Oct
Probability that frost is over

50% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Greenhouse
22 Mar – 5 Apr
5-7 wk
10 May
1 wk after
5 Apr
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 Apr
4-6 wk
21 May
2 wk after
30 Apr
1 wk before
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
20 Feb – 6 Mar
5-7 wk
10 Apr
4 wk before
26 Apr
2 wk before
Cucumber
Cucumis sativus
Greenhouse
11 – 18 May
3-4 wk
8 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
4 – 11 May
4-5 wk
8 Jun
5 wk after
14 May
1 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 May
3-4 wk
9 Jun
5 wk after
Onion
Allium cepa (Cepa-gruppen)
9 Feb – 9 Mar
8-12 wk
4 May
Vid frost
17 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 May
1 wk after
Sweetcorn
Zea mays
Greenhouse
4 – 11 May
3-4 wk
1 Jun
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
3-4 wk
3 Jun
4 wk after
17 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
20 Feb – 6 Mar
5-7 wk
10 Apr
4 wk before
26 Apr
2 wk before
Potato
Solanum tuberosum
10 – 24 May
4-6 wk
21 Jun
7 wk after
12 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Feb – 6 Mar
5-7 wk
10 Apr
4 wk before
30 Apr
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
11 – 18 May
3-4 wk
8 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
3-4 wk
3 Jun
4 wk after
17 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 Apr
4-6 wk
21 May
2 wk after
Lettuce
Lactuca sativa
30 Mar – 6 Apr
3-4 wk
27 Apr
1 wk before
30 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Mar
4-6 wk
27 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
22 Mar – 5 Apr
2-4 wk
19 Apr
2 wk before
26 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 Apr
1 wk before
Spinach
Spinacia oleracea
22 – 29 Mar
3-4 wk
19 Apr
2 wk before
21 Apr
3 wk before
Sweet potato
Ipomoea batatas
22 May – 5 Jun
4-6 wk
3 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
11 – 25 May
2-4 wk
8 Jun
5 wk after
25 May
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 Apr
4-6 wk
21 May
2 wk after
Pea
Pisum sativum
22 – 29 Mar
3-4 wk
19 Apr
2 wk before
30 Apr
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
Greenhouse
20 Apr – 4 May
4-6 wk
1 Jun
4 wk after
Lemon balm
Melissa officinalis
23 Feb – 9 Mar
8-10 wk
4 May
Vid frost
29 May
3 wk after
Dill
Anethum graveolens
30 Apr
1 wk before
Chives
Allium schoenoprasum
13 – 27 Feb
6-8 wk
10 Apr
4 wk before
30 Apr
1 wk before
Spearmint
Mentha spicata
25 Jan – 22 Feb
8-12 wk
19 Apr
2 wk before
29 May
3 wk after
Coriander
Coriandrum sativum
17 May
1 wk after
Sage
Salvia officinalis
25 Mar – 8 Apr
8-10 wk
3 Jun
4 wk after
Thyme
Thymus vulgaris
12 – 26 Mar
8-10 wk
21 May
2 wk after
Oregano
Origanum vulgare
15 – 29 Mar
6-8 wk
10 May
1 wk after
29 May
3 wk after
Parsley
Petroselinum crispum
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
30 Apr
1 wk before
Rosemary
Salvia rosmarinus
Fleece
9 Feb – 9 Mar
10-14 wk
18 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
23 – 30 May
3-4 wk
20 Jun
7 wk after
Cornflower
Centaurea cyanus
19 Apr
2 wk before
30 Apr
1 wk before
Statice
Limonium sinuatum
Greenhouse
17 – 31 Mar
8-10 wk
26 May
3 wk after
Sweet William
Dianthus barbatus
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
12 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
1 Jun
4 wk after
Dahlia
Dahlia × pinnata
Fleece
7 – 21 Apr
6-8 wk
2 Jun
4 wk after
Dahlia (tubers)
Dahlia × pinnata
21 Apr – 19 May
4-8 wk
16 Jun
6 wk after
29 May
3 wk after
Foxglove
Digitalis purpurea
8 – 22 Feb
8-10 wk
19 Apr
2 wk before
17 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
28 Mar – 25 Apr
8-12 wk
20 Jun
7 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
13 – 27 Apr
6-8 wk
8 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 May
4-6 wk
20 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
9 – 23 Mar
8-10 wk
18 May
2 wk after
Love in a mist
Nigella damascena
30 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
1 Jun
4 wk after
Tall verbena
Verbena bonariensis
Fleece
23 Feb – 23 Mar
8-12 wk
18 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
3 – 31 Mar
8-12 wk
26 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
13 – 27 Apr
6-8 wk
8 Jun
5 wk after
Corn poppy
Papaver rhoeas
30 Apr
1 wk before
Snapdragon
Antirrhinum majus
2 Feb – 2 Mar
8-12 wk
27 Apr
1 wk before
12 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
30 Mar – 13 Apr
8-10 wk
8 Jun
5 wk after
Sweet pea
Lathyrus odoratus
22 Feb – 15 Mar
5-8 wk
19 Apr
2 wk before
Stock
Matthiola incana
2 – 16 Mar
6-8 wk
27 Apr
1 wk before
17 May
1 wk after
Wormwood
Artemisia absinthium
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
17 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
5 wk after
Pansy
Viola × wittrockiana
30 Jan – 13 Feb
8-10 wk
10 Apr
4 wk before
12 May
1 wk after
Petunia
Petunia
Greenhouse
3 – 31 Mar
8-12 wk
26 May
3 wk after
Scabious
Scabiosa atropurpurea
Fleece
23 Mar – 6 Apr
6-8 wk
18 May
2 wk after
25 May
3 wk after
Zinnia
Zinnia elegans
Greenhouse
14 – 28 Apr
4-6 wk
26 May
3 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
4 – 18 May
3-5 wk
8 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
14 – 28 Apr
4-6 wk
26 May
3 wk after
14 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
28 Mar – 25 Apr
8-12 wk
20 Jun
7 wk after
Bee balm
Monarda didyma
9 Feb – 9 Mar
8-12 wk
4 May
Vid frost
29 May
3 wk after
Yarrow
Achillea millefolium
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
17 May
1 wk after
Safflower
Carthamus tinctorius
19 Apr
2 wk before
30 Apr
1 wk before
Iceland poppy
Papaver nudicaule
13 – 27 Feb
6-8 wk
10 Apr
4 wk before
26 Apr
2 wk before
Bishop's flower
Ammi majus
3 – 17 Apr
4-6 wk
15 May
1 wk after
17 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
16 – 30 Mar
10-12 wk
8 Jun
5 wk after
Sunflower
Helianthus annuus
Greenhouse
28 Apr – 5 May
3-4 wk
26 May
3 wk after
3 May
China aster
Callistephus chinensis
Greenhouse
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
14 May
1 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
6-8 wk
9 Jun
5 wk after
14 Jun
5 wk after
Hollyhock
Alcea rosea
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
17 May
1 wk after
Delphinium
Delphinium elatum
26 Feb – 26 Mar
8-12 wk
21 May
2 wk after
29 May
3 wk after
African marigold
Tagetes erecta
Greenhouse
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
6-8 wk
3 Jun
4 wk after
14 Jun
5 wk after
Woodland sage
Salvia nemorosa
1 – 15 Mar
8-10 wk
10 May
1 wk after
29 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
30 Mar – 27 Apr
6-10 wk
8 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
30 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
17 – 31 Mar
8-10 wk
26 May
3 wk after
Water forget-me-not
Myosotis scorpioides
22 Feb – 8 Mar
6-8 wk
19 Apr
2 wk before
17 May
1 wk after
Current date Soon Date passed