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0.6°
Last 24h: Near frost recorded this morning at 06:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 23 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 239 days 23 Mar – 17 Nov
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

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