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Rel. frost
Last spring frost (0°C) 7 May Frost 1 of 10 years · 20 years of data
Frost-free season 188 days 7 May – 11 Nov
Probability that frost is over

90% = 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)
Fleece
7 – 21 Apr
5-7 wk
26 May
3 wk after
4 May
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
4-6 wk
24 May
3 wk after
3 May
Vid frost
Chili pepper
Capsicum annuum
Greenhouse
18 Mar – 15 Apr
8-12 wk
10 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
2 wk before
29 Apr
Vid frost
Cucumber
Cucumis sativus
Greenhouse
13 – 20 May
3-4 wk
10 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
6 – 13 May
4-5 wk
10 Jun
5 wk after
20 May
2 wk after
Butter bean
Phaseolus lunatus
Season too short
22 – 29 May
3-4 wk
19 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
12 Feb – 12 Mar
8-12 wk
7 May
Vid frost
20 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
13 May
1 wk after
Sweetcorn
Zea mays
Season too short
11 – 18 May
3-4 wk
8 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
3-4 wk
6 Jun
5 wk after
20 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 Apr
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
2 wk before
29 Apr
Vid frost
Potato
Solanum tuberosum
13 – 27 May
4-6 wk
24 Jun
6 wk after
15 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Feb – 9 Mar
5-7 wk
13 Apr
2 wk before
3 May
Vid frost
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
3-4 wk
10 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
3-4 wk
6 Jun
5 wk after
20 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
4-6 wk
24 May
3 wk after
Lettuce
Lactuca sativa
2 – 9 Apr
3-4 wk
30 Apr
1 wk before
3 May
Vid frost
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
1 wk before
29 Apr
Vid frost
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
3 May
Vid frost
Spinach
Spinacia oleracea
25 Mar – 1 Apr
3-4 wk
22 Apr
1 wk before
24 Apr
Vid frost
Sweet potato
Ipomoea batatas
25 May – 8 Jun
4-6 wk
6 Jul
7 wk after
Tomato
Solanum lycopersicum
Fleece
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
13 – 27 May
2-4 wk
10 Jun
5 wk after
1 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
4-6 wk
24 May
3 wk after
Pea
Pisum sativum
25 Mar – 1 Apr
3-4 wk
22 Apr
1 wk before
3 May
Vid frost
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
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
5 wk after
Lemon balm
Melissa officinalis
26 Feb – 12 Mar
8-10 wk
7 May
Vid frost
1 Jun
4 wk after
Dill
Anethum graveolens
3 May
Vid frost
Chives
Allium schoenoprasum
16 Feb – 2 Mar
6-8 wk
13 Apr
2 wk before
3 May
Vid frost
Spearmint
Mentha spicata
28 Jan – 25 Feb
8-12 wk
22 Apr
1 wk before
1 Jun
4 wk after
Coriander
Coriandrum sativum
20 May
2 wk after
Sage
Salvia officinalis
28 Mar – 11 Apr
8-10 wk
6 Jun
5 wk after
Thyme
Thymus vulgaris
15 – 29 Mar
8-10 wk
24 May
3 wk after
Oregano
Origanum vulgare
18 Mar – 1 Apr
6-8 wk
13 May
1 wk after
1 Jun
4 wk after
Parsley
Petroselinum crispum
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
3 May
Vid frost
Rosemary
Salvia rosmarinus
Fleece
17 Feb – 17 Mar
10-14 wk
26 May
3 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
20 – 27 May
3-4 wk
17 Jun
6 wk after
Cornflower
Centaurea cyanus
22 Apr
1 wk before
3 May
Vid frost
Statice
Limonium sinuatum
Fleece
1 – 15 Apr
8-10 wk
10 Jun
5 wk after
Sweet William
Dianthus barbatus
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
15 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
26 Jun
7 wk after
Dahlia
Dahlia × pinnata
Fleece
13 – 27 Apr
6-8 wk
8 Jun
5 wk after
Dahlia (tubers)
Dahlia × pinnata
Fleece
25 Mar – 22 Apr
4-8 wk
20 May
2 wk after
20 May
2 wk after
Foxglove
Digitalis purpurea
11 – 25 Feb
8-10 wk
22 Apr
1 wk before
20 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
25 Mar – 22 Apr
8-12 wk
17 Jun
6 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
6 wk after
Chinese lantern
Physalis alkekengi
Fleece
17 – 31 Mar
8-10 wk
26 May
3 wk after
Love in a mist
Nigella damascena
3 May
Vid frost
Strawflower
Xerochrysum bracteatum
Greenhouse
8 – 22 Apr
6-8 wk
3 Jun
4 wk after
8 Jun
5 wk after
Tall verbena
Verbena bonariensis
Fleece
3 – 31 Mar
8-12 wk
26 May
3 wk after
Cardoon
Cynara cardunculus
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
Corn poppy
Papaver rhoeas
3 May
Vid frost
Snapdragon
Antirrhinum majus
5 Feb – 5 Mar
8-12 wk
30 Apr
1 wk before
15 May
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
1 – 15 Apr
8-10 wk
10 Jun
5 wk after
Sweet pea
Lathyrus odoratus
25 Feb – 18 Mar
5-8 wk
22 Apr
1 wk before
Stock
Matthiola incana
5 – 19 Mar
6-8 wk
30 Apr
1 wk before
20 May
2 wk after
Wormwood
Artemisia absinthium
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
20 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Apr – 13 May
4-6 wk
10 Jun
5 wk after
Pansy
Viola × wittrockiana
2 – 16 Feb
8-10 wk
13 Apr
2 wk before
15 May
1 wk after
Petunia
Petunia
Greenhouse
11 Mar – 8 Apr
8-12 wk
3 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Fleece
31 Mar – 14 Apr
6-8 wk
26 May
3 wk after
1 Jun
4 wk after
Zinnia
Zinnia elegans
Fleece
29 Apr – 13 May
4-6 wk
10 Jun
5 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
6 – 20 May
3-5 wk
10 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Fleece
29 Apr – 13 May
4-6 wk
10 Jun
5 wk after
1 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
6 wk after
Bee balm
Monarda didyma
12 Feb – 12 Mar
8-12 wk
7 May
Vid frost
1 Jun
4 wk after
Yarrow
Achillea millefolium
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
20 May
2 wk after
Safflower
Carthamus tinctorius
22 Apr
1 wk before
3 May
Vid frost
Iceland poppy
Papaver nudicaule
16 Feb – 2 Mar
6-8 wk
13 Apr
2 wk before
29 Apr
Vid frost
Bishop's flower
Ammi majus
6 – 20 Apr
4-6 wk
18 May
1 wk after
20 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
18 Mar – 1 Apr
10-12 wk
10 Jun
5 wk after
Sunflower
Helianthus annuus
Greenhouse
6 – 13 May
3-4 wk
3 Jun
4 wk after
13 May
1 wk after
China aster
Callistephus chinensis
Greenhouse
8 – 22 Apr
6-8 wk
3 Jun
4 wk after
20 May
2 wk after
Annual phlox
Phlox drummondii
17 Apr – 1 May
6-8 wk
12 Jun
5 wk after
17 Jun
6 wk after
Hollyhock
Alcea rosea
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
20 May
2 wk after
Delphinium
Delphinium elatum
1 – 29 Mar
8-12 wk
24 May
3 wk after
1 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
6-8 wk
6 Jun
5 wk after
17 Jun
6 wk after
Woodland sage
Salvia nemorosa
4 – 18 Mar
8-10 wk
13 May
1 wk after
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
1 – 29 Apr
6-10 wk
10 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
3 May
Vid frost
Painted tongue
Salpiglossis sinuata
Fleece
1 – 15 Apr
8-10 wk
10 Jun
5 wk after
Water forget-me-not
Myosotis scorpioides
25 Feb – 11 Mar
6-8 wk
22 Apr
1 wk before
20 May
2 wk after
Current date Soon Date passed