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-0.5°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 23 May Frost 1 of 10 years · 20 years of data
Frost-free season 148 days 23 May – 18 Oct
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)
Greenhouse
9 – 23 Apr
5-7 wk
28 May
1 wk after
14 May
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
4-6 wk
9 Jun
3 wk after
19 May
Vid frost
Chili pepper
Capsicum annuum
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Mar
5-7 wk
29 Apr
2 wk before
15 May
Vid frost
Cucumber
Cucumis sativus
Season too short
29 May – 5 Jun
3-4 wk
26 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
22 – 29 May
4-5 wk
26 Jun
5 wk after
5 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
28 Feb – 28 Mar
8-12 wk
23 May
Vid frost
5 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
23 May
Sweetcorn
Zea mays
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
5 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
5 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
15 May
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Mar
5-7 wk
29 Apr
2 wk before
15 May
Vid frost
Potato
Solanum tuberosum
Greenhouse
8 – 22 Apr
4-6 wk
20 May
20 May
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Mar
5-7 wk
29 Apr
2 wk before
19 May
Vid frost
Pumpkin
Cucurbita pepo
Greenhouse
29 May – 5 Jun
3-4 wk
26 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
5 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
4-6 wk
9 Jun
3 wk after
Lettuce
Lactuca sativa
18 – 25 Apr
3-4 wk
16 May
1 wk before
19 May
Vid frost
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Apr
4-6 wk
16 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
19 Apr – 3 May
2-4 wk
17 May
1 wk before
17 May
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
14 May
1 wk before
Spinach
Spinacia oleracea
10 – 17 Apr
3-4 wk
8 May
1 wk before
10 May
Vid frost
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
7 wk after
Tomato
Solanum lycopersicum
Greenhouse
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
22 May – 5 Jun
2-4 wk
19 Jun
4 wk after
5 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
4-6 wk
9 Jun
3 wk after
Pea
Pisum sativum
10 – 17 Apr
3-4 wk
8 May
1 wk before
19 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
13 – 27 May
4-6 wk
24 Jun
5 wk after
Lemon balm
Melissa officinalis
14 – 28 Mar
8-10 wk
23 May
Vid frost
17 Jun
4 wk after
Dill
Anethum graveolens
19 May
Vid frost
Chives
Allium schoenoprasum
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
19 May
Vid frost
Spearmint
Mentha spicata
13 Feb – 13 Mar
8-12 wk
8 May
1 wk before
17 Jun
4 wk after
Coriander
Coriandrum sativum
5 Jun
2 wk after
Sage
Salvia officinalis
Fleece
2 – 16 Apr
8-10 wk
11 Jun
3 wk after
Thyme
Thymus vulgaris
31 Mar – 14 Apr
8-10 wk
9 Jun
3 wk after
Oregano
Origanum vulgare
3 – 17 Apr
6-8 wk
29 May
1 wk after
17 Jun
4 wk after
Parsley
Petroselinum crispum
13 – 27 Mar
6-8 wk
8 May
1 wk before
19 May
Vid frost
Rosemary
Salvia rosmarinus
Greenhouse
19 Feb – 19 Mar
10-14 wk
28 May
1 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
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Cornflower
Centaurea cyanus
8 May
1 wk before
19 May
Vid frost
Statice
Limonium sinuatum
Greenhouse
10 – 24 Apr
8-10 wk
19 Jun
4 wk after
Sweet William
Dianthus barbatus
13 – 27 Mar
6-8 wk
8 May
1 wk before
31 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
24 Jun
5 wk after
Dahlia
Dahlia × pinnata
Greenhouse
16 – 30 Apr
6-8 wk
11 Jun
3 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
3 Apr – 1 May
4-8 wk
29 May
1 wk after
29 May
1 wk after
Foxglove
Digitalis purpurea
27 Feb – 13 Mar
8-10 wk
8 May
1 wk before
5 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
3 Apr – 1 May
8-12 wk
26 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 May – 5 Jun
4-6 wk
3 Jul
6 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
19 Mar – 2 Apr
8-10 wk
28 May
1 wk after
Love in a mist
Nigella damascena
19 May
Vid frost
Strawflower
Xerochrysum bracteatum
Season too short
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
24 Jun
5 wk after
Tall verbena
Verbena bonariensis
Greenhouse
5 Mar – 2 Apr
8-12 wk
28 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
1 – 15 May
6-8 wk
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
19 May
Vid frost
Snapdragon
Antirrhinum majus
21 Feb – 21 Mar
8-12 wk
16 May
1 wk before
31 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
17 Apr – 1 May
8-10 wk
26 Jun
5 wk after
Sweet pea
Lathyrus odoratus
13 Mar – 3 Apr
5-8 wk
8 May
1 wk before
Stock
Matthiola incana
21 Mar – 4 Apr
6-8 wk
16 May
1 wk before
5 Jun
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Mar
6-8 wk
8 May
1 wk before
5 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
15 – 29 May
4-6 wk
26 Jun
5 wk after
Pansy
Viola × wittrockiana
18 Feb – 4 Mar
8-10 wk
29 Apr
2 wk before
31 May
1 wk after
Petunia
Petunia
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
2 – 16 Apr
6-8 wk
28 May
1 wk after
5 Jun
2 wk after
Zinnia
Zinnia elegans
Greenhouse
8 – 22 May
4-6 wk
19 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
22 May – 5 Jun
3-5 wk
26 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
8 – 22 May
4-6 wk
19 Jun
4 wk after
5 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
10 Apr – 8 May
8-12 wk
3 Jul
6 wk after
Bee balm
Monarda didyma
28 Feb – 28 Mar
8-12 wk
23 May
Vid frost
17 Jun
4 wk after
Yarrow
Achillea millefolium
13 – 27 Mar
6-8 wk
8 May
1 wk before
5 Jun
2 wk after
Safflower
Carthamus tinctorius
8 May
1 wk before
19 May
Vid frost
Iceland poppy
Papaver nudicaule
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
15 May
Vid frost
Bishop's flower
Ammi majus
22 Apr – 6 May
4-6 wk
3 Jun
1 wk after
5 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
3 – 17 Apr
10-12 wk
26 Jun
5 wk after
Sunflower
Helianthus annuus
Season too short
22 – 29 May
3-4 wk
19 Jun
4 wk after
29 May
1 wk after
China aster
Callistephus chinensis
Season too short
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
5 Jun
2 wk after
Annual phlox
Phlox drummondii
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
17 Jun
4 wk after
Hollyhock
Alcea rosea
13 – 27 Mar
6-8 wk
8 May
1 wk before
5 Jun
2 wk after
Delphinium
Delphinium elatum
17 Mar – 14 Apr
8-12 wk
9 Jun
3 wk after
17 Jun
4 wk after
African marigold
Tagetes erecta
Greenhouse
24 Apr – 8 May
6-8 wk
19 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
16 – 30 Apr
6-8 wk
11 Jun
3 wk after
17 Jun
4 wk after
Woodland sage
Salvia nemorosa
20 Mar – 3 Apr
8-10 wk
29 May
1 wk after
17 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
17 Apr – 15 May
6-10 wk
26 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
19 May
Vid frost
Painted tongue
Salpiglossis sinuata
Greenhouse
10 – 24 Apr
8-10 wk
19 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Mar
6-8 wk
8 May
1 wk before
5 Jun
2 wk after
Current date Soon Date passed