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Last 24h: Near frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 3 May Normal year · 20 years of data
Frost-free season 163 days 3 May – 13 Oct
Probability that frost is over

50% = 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)
15 – 29 Mar
20 Jun
5-7 wk
3 May
25 Jul
0 wk
27 Apr
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Mar – 5 Apr
2 Jul
4-6 wk
3 May
30 Jul
0 wk
27 Apr
20 Jul
1 wk before
Chili pepper
Capsicum annuum
21 Mar – 18 Apr
13 Apr
8-12 wk
13 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Mar
15 Jun
5-7 wk
3 May
20 Jul
0 wk
20 Apr
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
16 – 23 May
15 Jun
3-4 wk
13 Jun
6 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
9 – 16 May
12 Jun
4-5 wk
13 Jun
10 Jul
6 wk after
13 Jun
30 Jun
6 wk after
Butter bean
Phaseolus lunatus
Fleece
11 – 18 Jun
3-4 wk
9 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Feb – 8 Mar
5 Apr
8-12 wk
3 May
31 May
0 wk
16 May
21 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Apr
20 Jun
1 wk before
27 Apr
10 Jun
1 wk before
Maize
Zea mays
2 – 9 May
5 Jun
3-4 wk
30 May
26 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 Apr
9 Jul
3-4 wk
3 May
30 Jul
0 wk
16 May
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 May
10 Jul
0 wk
20 Apr
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Mar
15 Jun
5-7 wk
3 May
20 Jul
0 wk
20 Apr
10 Jul
2 wk before
Potato
Solanum tuberosum
27 Mar – 10 Apr
12 Jun
4-6 wk
8 May
10 Jul
1 wk after
8 May
30 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Mar
25 Jun
5-7 wk
3 May
30 Jul
0 wk
27 Apr
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
16 – 23 May
3 Jul
3-4 wk
13 Jun
24 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 Apr
29 Jun
3-4 wk
3 May
20 Jul
0 wk
16 May
10 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Mar – 5 Apr
27 Jun
4-6 wk
3 May
25 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 Apr
14 Jul
3-4 wk
3 May
4 Aug
0 wk
27 Apr
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Mar – 5 Apr
27 Jun
4-6 wk
3 May
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Mar – 6 Apr
6 Jun
2-4 wk
20 Apr
20 Jun
2 wk before
20 Apr
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 Apr
20 Jun
1 wk before
27 Apr
10 Jun
1 wk before
Spinach
Spinacia oleracea
5 – 12 Apr
29 Jul
3-4 wk
3 May
19 Aug
0 wk
13 Apr
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jun
4-6 wk
16 Jul
11 wk after
Garden tomato
Solanum lycopersicum
4 – 18 Apr
15 May
6-8 wk
30 May
26 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
2 – 16 May
5 Jul
2-4 wk
30 May
19 Jul
4 wk after
13 Jun
9 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Mar – 5 Apr
27 Jun
4-6 wk
3 May
25 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 Apr
29 Jun
3-4 wk
3 May
20 Jul
0 wk
27 Apr
10 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
2 – 16 May
11 Jun
4-6 wk
13 Jun
9 Jul
6 wk after
Lemon balm
Melissa officinalis
22 Feb – 8 Mar
25 May
8-10 wk
3 May
20 Jul
0 wk
29 May
10 Jul
4 wk after
Dill
Anethum graveolens
27 Apr
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
8 – 22 Mar
8 Jun
6-8 wk
3 May
20 Jul
0 wk
27 Apr
10 Jul
1 wk before
Spearmint
Mentha spicata
8 Feb – 8 Mar
25 May
8-12 wk
3 May
20 Jul
0 wk
29 May
10 Jul
4 wk after
Coriander
Coriandrum sativum
3 May
19 Aug
0 wk
16 May
9 Aug
2 wk after
Garden sage
Salvia officinalis
22 Feb – 8 Mar
10 May
8-10 wk
3 May
5 Jul
0 wk
Common thyme
Thymus vulgaris
22 Feb – 8 Mar
15 May
8-10 wk
3 May
10 Jul
0 wk
Oregano
Origanum vulgare
8 – 22 Mar
29 May
6-8 wk
3 May
10 Jul
0 wk
29 May
30 Jun
4 wk after
Parsley
Petroselinum crispum
8 – 22 Mar
29 May
6-8 wk
3 May
10 Jul
0 wk
27 Apr
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
25 Jan – 22 Feb
11 Apr
10-14 wk
3 May
20 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
16 – 23 May
18 Jun
3-4 wk
13 Jun
9 Jul
6 wk after
Cornflower
Centaurea cyanus
3 May
20 Jul
0 wk
27 Apr
10 Jul
1 wk before
Statice
Limonium sinuatum
21 Mar – 4 Apr
15 May
8-10 wk
30 May
10 Jul
4 wk after
Sweet William
Dianthus barbatus
8 – 22 Mar
6-8 wk
3 May
0 wk
8 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
4 – 18 Apr
29 May
6-8 wk
30 May
10 Jul
4 wk after
16 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
30 Mar – 13 Apr
29 May
6-8 wk
25 May
10 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 Apr – 1 May
12 Jun
4-8 wk
29 May
10 Jul
4 wk after
29 May
30 Jun
4 wk after
Foxglove
Digitalis purpurea
22 Feb – 8 Mar
8-10 wk
3 May
0 wk
16 May
2 wk after
Busy lizzie
Impatiens walleriana
21 Mar – 18 Apr
9 Jul
8-12 wk
13 Jun
3 Sep
6 wk after
Creeping zinnia
Sanvitalia procumbens
4 – 18 Apr
8 Jun
6-8 wk
30 May
20 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Fleece
2 – 16 May
12 May
4-6 wk
13 Jun
6 wk after
Chinese lantern
Physalis alkekengi
22 Feb – 8 Mar
25 Apr
8-10 wk
3 May
20 Jun
0 wk
Love in a mist
Nigella damascena
3 May
5 Jul
0 wk
27 Apr
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
4 – 18 Apr
19 May
6-8 wk
30 May
30 Jun
4 wk after
16 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
8 Feb – 8 Mar
25 Apr
8-12 wk
3 May
20 Jun
0 wk
Cardoon
Cynara cardunculus
7 Mar – 4 Apr
26 Mar
8-12 wk
30 May
4 wk after
Regal-foxtail
Ptilotus nobilis
21 Mar – 18 Apr
4 May
8-12 wk
13 Jun
29 Jun
6 wk after
Globe amaranth
Gomphrena globosa
18 Apr – 2 May
18 May
6-8 wk
13 Jun
29 Jun
6 wk after
Corn poppy
Papaver rhoeas
3 May
20 Jul
0 wk
27 Apr
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
8 Feb – 8 Mar
15 May
8-12 wk
3 May
10 Jul
0 wk
8 May
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
4 – 18 Apr
25 May
8-10 wk
13 Jun
20 Jul
6 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Mar
5 Jun
5-8 wk
3 May
10 Jul
0 wk
Stock
Matthiola incana
8 – 22 Mar
8 Jun
6-8 wk
3 May
20 Jul
0 wk
16 May
10 Jul
2 wk after
Wormwood
Artemisia absinthium
8 – 22 Mar
9 May
6-8 wk
3 May
20 Jun
0 wk
16 May
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
2 – 16 May
27 May
4-6 wk
13 Jun
24 Jun
6 wk after
Garden pansy
Viola × wittrockiana
22 Feb – 8 Mar
25 May
8-10 wk
3 May
20 Jul
0 wk
8 May
10 Jul
1 wk after
Petunia
Petunia
7 Mar – 4 Apr
15 May
8-12 wk
30 May
10 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Mar
9 May
6-8 wk
3 May
20 Jun
0 wk
13 Jun
6 wk after
Common zinnia
Zinnia elegans
18 Apr – 2 May
21 Jun
4-6 wk
30 May
19 Jul
4 wk after
Common morning glory
Ipomoea purpurea
9 – 23 May
18 Jun
3-5 wk
13 Jun
9 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
18 Apr – 2 May
12 Jun
4-6 wk
30 May
10 Jul
4 wk after
13 Jun
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
8 Apr – 6 May
3 Jun
8-12 wk
1 Jul
29 Jul
8 wk after
Bee balm
Monarda didyma
8 Feb – 8 Mar
25 Apr
8-12 wk
3 May
20 Jun
0 wk
29 May
10 Jun
4 wk after
Yarrow
Achillea millefolium
8 – 22 Mar
9 Apr
6-8 wk
3 May
21 May
0 wk
16 May
2 wk after
Safflower
Carthamus tinctorius
3 May
20 Jun
0 wk
27 Apr
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
8 – 22 Mar
29 May
6-8 wk
3 May
10 Jul
0 wk
18 Mar
30 Jun
7 wk before
Bishop's flower
Ammi majus
22 Mar – 5 Apr
12 Jun
4-6 wk
3 May
10 Jul
0 wk
16 May
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
21 Mar – 4 Apr
10 Apr
10-12 wk
13 Jun
19 Jun
6 wk after
Sunflower
Helianthus annuus
2 – 9 May
19 Jun
3-4 wk
30 May
10 Jul
4 wk after
29 May
30 Jun
4 wk after
China aster
Callistephus chinensis
4 – 18 Apr
8 Jun
6-8 wk
30 May
20 Jul
4 wk after
13 Jun
10 Jul
6 wk after
Annual phlox
Phlox drummondii
26 Mar – 9 Apr
8 Jun
6-8 wk
21 May
20 Jul
3 wk after
13 Jun
10 Jul
6 wk after
Hollyhock
Alcea rosea
8 – 22 Mar
6-8 wk
3 May
0 wk
16 May
2 wk after
Alpine delphinium
Delphinium elatum
8 Feb – 8 Mar
25 Apr
8-12 wk
3 May
20 Jun
0 wk
29 May
10 Jun
4 wk after
African marigold
Tagetes erecta
4 – 18 Apr
8 Jun
6-8 wk
30 May
20 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Mar
29 May
6-8 wk
3 May
10 Jul
0 wk
13 Jun
30 Jun
6 wk after
Wood sage
Salvia nemorosa
22 Feb – 8 Mar
15 Apr
8-10 wk
3 May
10 Jun
0 wk
29 May
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
4 Apr – 2 May
28 May
6-10 wk
13 Jun
9 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
3 May
20 Jul
0 wk
27 Apr
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
21 Mar – 4 Apr
15 May
8-10 wk
30 May
10 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Mar
9 May
6-8 wk
3 May
20 Jun
0 wk
16 May
10 Jun
2 wk after