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Last 24h: Near frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 23 May Frost 1 of 4 years · 20 years of data
Frost-free season 148 days 23 May – 18 Oct
Probability that frost is over

75% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

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