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Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 21 May Frost 1 of 4 years · 20 years of data
Frost-free season 140 days 21 May – 8 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)
2 – 16 Apr
19 Jun
5-7 wk
21 May
24 Jul
0 wk
15 May
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 Apr
1 Jul
4-6 wk
21 May
29 Jul
0 wk
15 May
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
25 Mar – 22 Apr
15 Apr
8-12 wk
17 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 Apr
14 Jun
5-7 wk
21 May
19 Jul
0 wk
8 May
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
3 – 10 Jun
9 Jun
3-4 wk
1 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
11 Jun
4-5 wk
1 Jul
9 Jul
6 wk after
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
13 – 20 Jun
3-4 wk
11 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
26 Feb – 26 Mar
4 Apr
8-12 wk
21 May
30 May
0 wk
3 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
19 Jun
1 wk before
15 May
9 Jun
1 wk before
Maize
Zea mays
20 – 27 May
30 May
3-4 wk
17 Jun
20 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
8 Jul
3-4 wk
21 May
29 Jul
0 wk
3 Jun
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 May
9 Jul
0 wk
8 May
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
2 – 16 Apr
14 Jun
5-7 wk
21 May
19 Jul
0 wk
8 May
9 Jul
2 wk before
Potato
Solanum tuberosum
14 – 28 Apr
11 Jun
4-6 wk
26 May
9 Jul
1 wk after
26 May
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 Apr
24 Jun
5-7 wk
21 May
29 Jul
0 wk
15 May
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
3 – 10 Jun
23 Jun
3-4 wk
1 Jul
14 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
22 Jun
3-4 wk
21 May
13 Jul
0 wk
3 Jun
3 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 Apr
26 Jun
4-6 wk
21 May
24 Jul
0 wk
Lettuce
Lactuca sativa
23 – 30 Apr
13 Jul
3-4 wk
21 May
3 Aug
0 wk
15 May
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
9 – 23 Apr
26 Jun
4-6 wk
21 May
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
5 Jun
2-4 wk
8 May
19 Jun
2 wk before
8 May
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
19 Jun
1 wk before
15 May
9 Jun
1 wk before
Spinach
Spinacia oleracea
23 – 30 Apr
28 Jul
3-4 wk
21 May
18 Aug
0 wk
1 May
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
11 wk after
Garden tomato
Solanum lycopersicum
22 Apr – 6 May
9 May
6-8 wk
17 Jun
20 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
20 May – 3 Jun
25 Jun
2-4 wk
17 Jun
9 Jul
4 wk after
1 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 Apr
26 Jun
4-6 wk
21 May
24 Jul
0 wk
Garden pea
Pisum sativum
23 – 30 Apr
28 Jun
3-4 wk
21 May
19 Jul
0 wk
15 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
20 May – 3 Jun
1 Jun
4-6 wk
1 Jul
6 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
24 May
8-10 wk
21 May
19 Jul
0 wk
16 Jun
9 Jul
4 wk after
Dill
Anethum graveolens
15 May
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
26 Mar – 9 Apr
7 Jun
6-8 wk
21 May
19 Jul
0 wk
15 May
9 Jul
1 wk before
Spearmint
Mentha spicata
26 Feb – 26 Mar
24 May
8-12 wk
21 May
19 Jul
0 wk
16 Jun
9 Jul
4 wk after
Coriander
Coriandrum sativum
21 May
18 Aug
0 wk
3 Jun
8 Aug
2 wk after
Garden sage
Salvia officinalis
12 – 26 Mar
9 May
8-10 wk
21 May
4 Jul
0 wk
Common thyme
Thymus vulgaris
12 – 26 Mar
14 May
8-10 wk
21 May
9 Jul
0 wk
Oregano
Origanum vulgare
26 Mar – 9 Apr
28 May
6-8 wk
21 May
9 Jul
0 wk
16 Jun
29 Jun
4 wk after
Parsley
Petroselinum crispum
26 Mar – 9 Apr
28 May
6-8 wk
21 May
9 Jul
0 wk
15 May
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
12 Feb – 12 Mar
10 Apr
10-14 wk
21 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
3 – 10 Jun
8 Jun
3-4 wk
1 Jul
6 wk after
Cornflower
Centaurea cyanus
21 May
19 Jul
0 wk
15 May
9 Jul
1 wk before
Statice
Limonium sinuatum
8 – 22 Apr
13 May
8-10 wk
17 Jun
8 Jul
4 wk after
Sweet William
Dianthus barbatus
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
26 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
22 Apr – 6 May
27 May
6-8 wk
17 Jun
8 Jul
4 wk after
3 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
28 May
6-8 wk
12 Jun
9 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
21 Apr – 19 May
11 Jun
4-8 wk
16 Jun
9 Jul
4 wk after
16 Jun
29 Jun
4 wk after
Foxglove
Digitalis purpurea
12 – 26 Mar
8-10 wk
21 May
0 wk
3 Jun
2 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
2 Jul
8-12 wk
1 Jul
27 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
22 Apr – 6 May
6 Jun
6-8 wk
17 Jun
18 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
6 – 20 May
15 May
4-6 wk
17 Jun
4 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
24 Apr
8-10 wk
21 May
19 Jun
0 wk
Love in a mist
Nigella damascena
21 May
4 Jul
0 wk
15 May
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
22 Apr – 6 May
17 May
6-8 wk
17 Jun
28 Jun
4 wk after
3 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
26 Feb – 26 Mar
24 Apr
8-12 wk
21 May
19 Jun
0 wk
Cardoon
Cynara cardunculus
25 Mar – 22 Apr
25 Mar
8-12 wk
17 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
8 Apr – 6 May
24 Apr
8-12 wk
1 Jul
6 wk after
Globe amaranth
Gomphrena globosa
6 – 20 May
8 May
6-8 wk
1 Jul
6 wk after
Corn poppy
Papaver rhoeas
21 May
19 Jul
0 wk
15 May
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
26 Feb – 26 Mar
14 May
8-12 wk
21 May
9 Jul
0 wk
26 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
23 May
8-10 wk
1 Jul
18 Jul
6 wk after
Sweet pea
Lathyrus odoratus
26 Mar – 16 Apr
4 Jun
5-8 wk
21 May
9 Jul
0 wk
Stock
Matthiola incana
26 Mar – 9 Apr
7 Jun
6-8 wk
21 May
19 Jul
0 wk
3 Jun
9 Jul
2 wk after
Wormwood
Artemisia absinthium
26 Mar – 9 Apr
8 May
6-8 wk
21 May
19 Jun
0 wk
3 Jun
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
20 May – 3 Jun
4-6 wk
1 Jul
6 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Mar
24 May
8-10 wk
21 May
19 Jul
0 wk
26 May
9 Jul
1 wk after
Petunia
Petunia
25 Mar – 22 Apr
13 May
8-12 wk
17 Jun
8 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
8 May
6-8 wk
21 May
19 Jun
0 wk
1 Jul
6 wk after
Common zinnia
Zinnia elegans
6 – 20 May
14 Jun
4-6 wk
17 Jun
12 Jul
4 wk after
Common morning glory
Ipomoea purpurea
27 May – 10 Jun
8 Jun
3-5 wk
1 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
6 – 20 May
11 Jun
4-6 wk
17 Jun
9 Jul
4 wk after
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
26 Apr – 24 May
24 May
8-12 wk
19 Jul
19 Jul
8 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
24 Apr
8-12 wk
21 May
19 Jun
0 wk
16 Jun
4 wk after
Yarrow
Achillea millefolium
26 Mar – 9 Apr
8 Apr
6-8 wk
21 May
0 wk
3 Jun
2 wk after
Safflower
Carthamus tinctorius
21 May
19 Jun
0 wk
15 May
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
26 Mar – 9 Apr
28 May
6-8 wk
21 May
9 Jul
0 wk
5 Apr
29 Jun
7 wk before
Bishop's flower
Ammi majus
9 – 23 Apr
11 Jun
4-6 wk
21 May
9 Jul
0 wk
3 Jun
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
8 – 22 Apr
10-12 wk
1 Jul
6 wk after
Sunflower
Helianthus annuus
20 – 27 May
18 Jun
3-4 wk
17 Jun
9 Jul
4 wk after
16 Jun
29 Jun
4 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
7 Jun
6-8 wk
17 Jun
19 Jul
4 wk after
1 Jul
9 Jul
6 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
6 Jun
6-8 wk
8 Jun
18 Jul
3 wk after
1 Jul
8 Jul
6 wk after
Hollyhock
Alcea rosea
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
3 Jun
2 wk after
Alpine delphinium
Delphinium elatum
26 Feb – 26 Mar
24 Apr
8-12 wk
21 May
19 Jun
0 wk
16 Jun
4 wk after
African marigold
Tagetes erecta
22 Apr – 6 May
6 Jun
6-8 wk
17 Jun
18 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
28 May
6-8 wk
21 May
9 Jul
0 wk
1 Jul
6 wk after
Wood sage
Salvia nemorosa
12 – 26 Mar
14 Apr
8-10 wk
21 May
9 Jun
0 wk
16 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
22 Apr – 20 May
18 May
6-10 wk
1 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
21 May
19 Jul
0 wk
15 May
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
14 May
8-10 wk
17 Jun
9 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
26 Mar – 9 Apr
8 May
6-8 wk
21 May
19 Jun
0 wk
3 Jun
9 Jun
2 wk after