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Rel. frost
Last spring frost (0°C) 24 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 211 days 24 Apr – 21 Nov
Probability that frost is over

75% = 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)
6 – 20 Mar
17 Jun
5-7 wk
24 Apr
22 Jul
0 wk
17 Apr
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Mar
29 Jun
4-6 wk
24 Apr
27 Jul
0 wk
17 Apr
17 Jul
1 wk before
Chili pepper
Capsicum annuum
7 Mar – 4 Apr
18 Apr
8-12 wk
30 May
13 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Mar
12 Jun
5-7 wk
24 Apr
17 Jul
0 wk
12 Apr
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
2 – 9 May
27 Jun
3-4 wk
30 May
18 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
25 Apr – 2 May
9 Jun
4-5 wk
30 May
7 Jul
5 wk after
30 May
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Fleece
23 – 30 May
5 Jun
3-4 wk
20 Jun
26 Jun
8 wk after
Onion
Allium cepa (Cepa-gruppen)
30 Jan – 27 Feb
2 Apr
8-12 wk
24 Apr
28 May
0 wk
4 May
18 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 Apr
17 Jun
1 wk before
17 Apr
7 Jun
1 wk before
Maize
Zea mays
15 – 22 Apr
17 Jun
3-4 wk
13 May
8 Jul
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
2 – 9 Apr
6 Jul
3-4 wk
30 Apr
27 Jul
1 wk after
4 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 Apr
7 Jul
0 wk
12 Apr
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Mar
12 Jun
5-7 wk
24 Apr
17 Jul
0 wk
12 Apr
7 Jul
2 wk before
Potato
Solanum tuberosum
18 Mar – 1 Apr
9 Jun
4-6 wk
29 Apr
7 Jul
1 wk after
29 Apr
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Mar
22 Jun
5-7 wk
24 Apr
27 Jul
0 wk
17 Apr
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
2 – 9 May
10 Jul
3-4 wk
30 May
31 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
2 – 9 Apr
29 Jun
3-4 wk
30 Apr
20 Jul
1 wk after
4 May
10 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Mar
24 Jun
4-6 wk
24 Apr
22 Jul
0 wk
Lettuce
Lactuca sativa
27 Mar – 3 Apr
11 Jul
3-4 wk
24 Apr
1 Aug
0 wk
17 Apr
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Mar
24 Jun
4-6 wk
24 Apr
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
15 – 29 Mar
3 Jun
2-4 wk
12 Apr
17 Jun
2 wk before
12 Apr
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
17 Apr
17 Jun
1 wk before
17 Apr
7 Jun
1 wk before
Spinach
Spinacia oleracea
27 Mar – 3 Apr
26 Jul
3-4 wk
24 Apr
16 Aug
0 wk
6 Apr
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
21 May – 4 Jun
4-6 wk
2 Jul
10 wk after
Garden tomato
Solanum lycopersicum
18 Mar – 1 Apr
27 May
6-8 wk
13 May
8 Jul
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 – 29 Apr
12 Jul
2-4 wk
13 May
26 Jul
3 wk after
30 May
16 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Mar
24 Jun
4-6 wk
24 Apr
22 Jul
0 wk
Garden pea
Pisum sativum
27 Mar – 3 Apr
26 Jun
3-4 wk
24 Apr
17 Jul
0 wk
17 Apr
7 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
18 Apr – 2 May
18 Jun
4-6 wk
30 May
16 Jul
5 wk after
Lemon balm
Melissa officinalis
13 – 27 Feb
22 May
8-10 wk
24 Apr
17 Jul
0 wk
15 May
7 Jul
3 wk after
Dill
Anethum graveolens
17 Apr
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
27 Feb – 13 Mar
5 Jun
6-8 wk
24 Apr
17 Jul
0 wk
17 Apr
7 Jul
1 wk before
Spearmint
Mentha spicata
30 Jan – 27 Feb
22 May
8-12 wk
24 Apr
17 Jul
0 wk
15 May
7 Jul
3 wk after
Coriander
Coriandrum sativum
24 Apr
16 Aug
0 wk
4 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
19 Feb – 5 Mar
7 May
8-10 wk
30 Apr
2 Jul
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Feb
12 May
8-10 wk
24 Apr
7 Jul
0 wk
Oregano
Origanum vulgare
27 Feb – 13 Mar
26 May
6-8 wk
24 Apr
7 Jul
0 wk
15 May
27 Jun
3 wk after
Parsley
Petroselinum crispum
27 Feb – 13 Mar
26 May
6-8 wk
24 Apr
7 Jul
0 wk
17 Apr
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
22 Jan – 19 Feb
8 Apr
10-14 wk
30 Apr
17 Jun
1 wk after

Annual flowers

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