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Rel. frost
Last spring frost (0°C) 7 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 235 days 7 Mar – 28 Oct
Probability that frost is over

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