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Rel. frost
Last spring frost (0°C) 9 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 186 days 9 Apr – 12 Oct
Probability that frost is over

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