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Rel. frost
Last spring frost (0°C) 27 Apr Frost 1 of 10 years · 20 years of data
Frost-free season 210 days 27 Apr – 23 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
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
9 – 23 Mar
21 Jun
5-7 wk
27 Apr
26 Jul
0 wk
21 Apr
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Mar
3 Jul
4-6 wk
27 Apr
31 Jul
0 wk
21 Apr
21 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
1 – 29 Mar
6 Apr
8-12 wk
24 May
1 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
9 – 23 Mar
16 Jun
5-7 wk
27 Apr
21 Jul
0 wk
14 Apr
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
10 – 17 May
31 May
3-4 wk
7 Jun
21 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 May
13 Jun
4-5 wk
7 Jun
11 Jul
6 wk after
7 Jun
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
5 – 12 Jun
3-4 wk
3 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
2 Feb – 2 Mar
6 Apr
8-12 wk
27 Apr
1 Jun
0 wk
10 May
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 Apr
21 Jun
1 wk before
21 Apr
11 Jun
1 wk before
Maize
Zea mays
26 Apr – 3 May
21 May
3-4 wk
24 May
11 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Mar – 6 Apr
10 Jul
3-4 wk
27 Apr
31 Jul
0 wk
10 May
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 Apr
11 Jul
0 wk
14 Apr
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
9 – 23 Mar
16 Jun
5-7 wk
27 Apr
21 Jul
0 wk
14 Apr
11 Jul
2 wk before
Potato
Solanum tuberosum
21 Mar – 4 Apr
13 Jun
4-6 wk
2 May
11 Jul
1 wk after
2 May
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
9 – 23 Mar
26 Jun
5-7 wk
27 Apr
31 Jul
0 wk
21 Apr
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
10 – 17 May
23 Jun
3-4 wk
7 Jun
14 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Mar – 6 Apr
10 Jul
3-4 wk
27 Apr
31 Jul
0 wk
10 May
21 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Mar
28 Jun
4-6 wk
27 Apr
26 Jul
0 wk
Lettuce
Lactuca sativa
30 Mar – 6 Apr
15 Jul
3-4 wk
27 Apr
5 Aug
0 wk
21 Apr
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
16 – 30 Mar
28 Jun
4-6 wk
27 Apr
26 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 – 31 Mar
7 Jun
2-4 wk
14 Apr
21 Jun
2 wk before
14 Apr
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 Apr
21 Jun
1 wk before
21 Apr
11 Jun
1 wk before
Spinach
Spinacia oleracea
30 Mar – 6 Apr
30 Jul
3-4 wk
27 Apr
20 Aug
0 wk
7 Apr
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
29 May – 12 Jun
4-6 wk
10 Jul
11 wk after
Garden tomato
Solanum lycopersicum
29 Mar – 12 Apr
30 Apr
6-8 wk
24 May
11 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
26 Apr – 10 May
25 Jun
2-4 wk
24 May
9 Jul
4 wk after
7 Jun
29 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Mar
28 Jun
4-6 wk
27 Apr
26 Jul
0 wk
Garden pea
Pisum sativum
30 Mar – 6 Apr
30 Jun
3-4 wk
27 Apr
21 Jul
0 wk
21 Apr
11 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
26 Apr – 10 May
1 Jun
4-6 wk
7 Jun
29 Jun
6 wk after
Lemon balm
Melissa officinalis
16 Feb – 2 Mar
26 May
8-10 wk
27 Apr
21 Jul
0 wk
23 May
11 Jul
4 wk after
Dill
Anethum graveolens
21 Apr
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
2 – 16 Mar
9 Jun
6-8 wk
27 Apr
21 Jul
0 wk
21 Apr
11 Jul
1 wk before
Spearmint
Mentha spicata
2 Feb – 2 Mar
26 May
8-12 wk
27 Apr
21 Jul
0 wk
23 May
11 Jul
4 wk after
Coriander
Coriandrum sativum
27 Apr
20 Aug
0 wk
10 May
10 Aug
2 wk after
Garden sage
Salvia officinalis
16 Feb – 2 Mar
11 May
8-10 wk
27 Apr
6 Jul
0 wk
Common thyme
Thymus vulgaris
16 Feb – 2 Mar
16 May
8-10 wk
27 Apr
11 Jul
0 wk
Oregano
Origanum vulgare
2 – 16 Mar
30 May
6-8 wk
27 Apr
11 Jul
0 wk
23 May
1 Jul
4 wk after
Parsley
Petroselinum crispum
2 – 16 Mar
30 May
6-8 wk
27 Apr
11 Jul
0 wk
21 Apr
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
19 Jan – 16 Feb
12 Apr
10-14 wk
27 Apr
21 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
10 – 17 May
8 Jun
3-4 wk
7 Jun
29 Jun
6 wk after
Cornflower
Centaurea cyanus
27 Apr
21 Jul
0 wk
21 Apr
11 Jul
1 wk before
Statice
Limonium sinuatum
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
4 wk after
Sweet William
Dianthus barbatus
2 – 16 Mar
6-8 wk
27 Apr
0 wk
2 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
4 wk after
10 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
24 Mar – 7 Apr
30 May
6-8 wk
19 May
11 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Mar – 25 Apr
13 Jun
4-8 wk
23 May
11 Jul
4 wk after
23 May
1 Jul
4 wk after
Foxglove
Digitalis purpurea
16 Feb – 2 Mar
8-10 wk
27 Apr
0 wk
10 May
2 wk after
Busy lizzie
Impatiens walleriana
15 Mar – 12 Apr
2 Jul
8-12 wk
7 Jun
27 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
29 Mar – 12 Apr
9 Jun
6-8 wk
24 May
21 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Fleece
26 Apr – 10 May
2 May
4-6 wk
7 Jun
6 wk after
Chinese lantern
Physalis alkekengi
16 Feb – 2 Mar
26 Apr
8-10 wk
27 Apr
21 Jun
0 wk
Love in a mist
Nigella damascena
27 Apr
6 Jul
0 wk
21 Apr
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
4 wk after
10 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
2 Feb – 2 Mar
26 Apr
8-12 wk
27 Apr
21 Jun
0 wk
Cardoon
Cynara cardunculus
1 – 29 Mar
27 Mar
8-12 wk
24 May
4 wk after
Regal-foxtail
Ptilotus nobilis
15 Mar – 12 Apr
24 Apr
8-12 wk
7 Jun
19 Jun
6 wk after
Globe amaranth
Gomphrena globosa
12 – 26 Apr
8 May
6-8 wk
7 Jun
19 Jun
6 wk after
Corn poppy
Papaver rhoeas
27 Apr
21 Jul
0 wk
21 Apr
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
2 Feb – 2 Mar
16 May
8-12 wk
27 Apr
11 Jul
0 wk
2 May
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
29 Mar – 12 Apr
26 May
8-10 wk
7 Jun
21 Jul
6 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Mar
6 Jun
5-8 wk
27 Apr
11 Jul
0 wk
Stock
Matthiola incana
2 – 16 Mar
9 Jun
6-8 wk
27 Apr
21 Jul
0 wk
10 May
11 Jul
2 wk after
Wormwood
Artemisia absinthium
2 – 16 Mar
10 May
6-8 wk
27 Apr
21 Jun
0 wk
10 May
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
26 Apr – 10 May
17 May
4-6 wk
7 Jun
14 Jun
6 wk after
Garden pansy
Viola × wittrockiana
16 Feb – 2 Mar
26 May
8-10 wk
27 Apr
21 Jul
0 wk
2 May
11 Jul
1 wk after
Petunia
Petunia
1 – 29 Mar
16 May
8-12 wk
24 May
11 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Mar
10 May
6-8 wk
27 Apr
21 Jun
0 wk
7 Jun
11 Jun
6 wk after
Common zinnia
Zinnia elegans
12 – 26 Apr
14 Jun
4-6 wk
24 May
12 Jul
4 wk after
Common morning glory
Ipomoea purpurea
3 – 17 May
8 Jun
3-5 wk
7 Jun
29 Jun
6 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 Apr
13 Jun
4-6 wk
24 May
11 Jul
4 wk after
7 Jun
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
2 – 30 Apr
24 May
8-12 wk
25 Jun
19 Jul
8 wk after
Bee balm
Monarda didyma
2 Feb – 2 Mar
26 Apr
8-12 wk
27 Apr
21 Jun
0 wk
23 May
11 Jun
4 wk after
Yarrow
Achillea millefolium
2 – 16 Mar
10 Apr
6-8 wk
27 Apr
22 May
0 wk
10 May
12 May
2 wk after
Safflower
Carthamus tinctorius
27 Apr
21 Jun
0 wk
21 Apr
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
2 – 16 Mar
30 May
6-8 wk
27 Apr
11 Jul
0 wk
12 Mar
1 Jul
7 wk before
Bishop's flower
Ammi majus
16 – 30 Mar
13 Jun
4-6 wk
27 Apr
11 Jul
0 wk
10 May
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
15 – 29 Mar
3 Apr
10-12 wk
7 Jun
12 Jun
6 wk after
Sunflower
Helianthus annuus
26 Apr – 3 May
20 Jun
3-4 wk
24 May
11 Jul
4 wk after
23 May
1 Jul
4 wk after
China aster
Callistephus chinensis
29 Mar – 12 Apr
9 Jun
6-8 wk
24 May
21 Jul
4 wk after
7 Jun
11 Jul
6 wk after
Annual phlox
Phlox drummondii
20 Mar – 3 Apr
9 Jun
6-8 wk
15 May
21 Jul
3 wk after
7 Jun
11 Jul
6 wk after
Hollyhock
Alcea rosea
2 – 16 Mar
6-8 wk
27 Apr
0 wk
10 May
2 wk after
Alpine delphinium
Delphinium elatum
2 Feb – 2 Mar
26 Apr
8-12 wk
27 Apr
21 Jun
0 wk
23 May
11 Jun
4 wk after
African marigold
Tagetes erecta
29 Mar – 12 Apr
9 Jun
6-8 wk
24 May
21 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Mar
30 May
6-8 wk
27 Apr
11 Jul
0 wk
7 Jun
1 Jul
6 wk after
Wood sage
Salvia nemorosa
16 Feb – 2 Mar
16 Apr
8-10 wk
27 Apr
11 Jun
0 wk
23 May
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
29 Mar – 26 Apr
18 May
6-10 wk
7 Jun
29 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
27 Apr
21 Jul
0 wk
21 Apr
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Mar
10 May
6-8 wk
27 Apr
21 Jun
0 wk
10 May
11 Jun
2 wk after