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No frost in sight Last frost normally in 7 days (20 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 20 May Frost 1 of 4 years · 20 years of data
Frost-free season 141 days 20 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)
1 – 15 Apr
17 Jun
5-7 wk
20 May
22 Jul
0 wk
13 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Apr
29 Jun
4-6 wk
20 May
27 Jul
0 wk
13 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
10 Mar – 7 Apr
16 Apr
8-12 wk
2 Jun
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
1 – 15 Apr
12 Jun
5-7 wk
20 May
17 Jul
0 wk
8 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
24 – 31 May
10 Jun
3-4 wk
21 Jun
1 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
17 – 24 May
9 Jun
4-5 wk
21 Jun
7 Jul
5 wk after
25 Jun
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Fleece
24 Jun – 1 Jul
3-4 wk
22 Jul
9 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Feb – 25 Mar
2 Apr
8-12 wk
20 May
28 May
0 wk
30 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
13 May
17 Jun
1 wk before
13 May
7 Jun
1 wk before
Maize
Zea mays
5 – 12 May
31 May
3-4 wk
2 Jun
21 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
6 Jul
3-4 wk
22 May
27 Jul
0 wk
30 May
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 May
7 Jul
0 wk
8 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
1 – 15 Apr
12 Jun
5-7 wk
20 May
17 Jul
0 wk
8 May
7 Jul
2 wk before
Potato
Solanum tuberosum
13 – 27 Apr
9 Jun
4-6 wk
25 May
7 Jul
1 wk after
25 May
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Apr
22 Jun
5-7 wk
20 May
27 Jul
0 wk
13 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
24 – 31 May
29 Jun
3-4 wk
21 Jun
20 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
28 Jun
3-4 wk
22 May
19 Jul
0 wk
30 May
9 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Apr
24 Jun
4-6 wk
20 May
22 Jul
0 wk
Lettuce
Lactuca sativa
22 – 29 Apr
11 Jul
3-4 wk
20 May
1 Aug
0 wk
13 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
8 – 22 Apr
24 Jun
4-6 wk
20 May
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 Apr
3 Jun
2-4 wk
8 May
17 Jun
2 wk before
8 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 May
17 Jun
1 wk before
13 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
22 – 29 Apr
26 Jul
3-4 wk
20 May
16 Aug
0 wk
2 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
16 – 30 Jun
4-6 wk
28 Jul
10 wk after
Garden tomato
Solanum lycopersicum
7 – 21 Apr
10 May
6-8 wk
2 Jun
21 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
5 – 19 May
1 Jul
2-4 wk
2 Jun
15 Jul
2 wk after
25 Jun
5 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Apr
24 Jun
4-6 wk
20 May
22 Jul
0 wk
Garden pea
Pisum sativum
22 – 29 Apr
26 Jun
3-4 wk
20 May
17 Jul
0 wk
13 May
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
10 – 24 May
7 Jun
4-6 wk
21 Jun
5 Jul
5 wk after
Lemon balm
Melissa officinalis
11 – 25 Mar
22 May
8-10 wk
20 May
17 Jul
0 wk
10 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
13 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
25 Mar – 8 Apr
5 Jun
6-8 wk
20 May
17 Jul
0 wk
13 May
7 Jul
1 wk before
Spearmint
Mentha spicata
25 Feb – 25 Mar
22 May
8-12 wk
20 May
17 Jul
0 wk
10 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
20 May
16 Aug
0 wk
30 May
6 Aug
1 wk after
Garden sage
Salvia officinalis
13 – 27 Mar
7 May
8-10 wk
22 May
2 Jul
0 wk
Common thyme
Thymus vulgaris
11 – 25 Mar
12 May
8-10 wk
20 May
7 Jul
0 wk
Oregano
Origanum vulgare
25 Mar – 8 Apr
26 May
6-8 wk
20 May
7 Jul
0 wk
10 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
25 Mar – 8 Apr
26 May
6-8 wk
20 May
7 Jul
0 wk
13 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
13 Feb – 13 Mar
8 Apr
10-14 wk
22 May
17 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
24 – 31 May
14 Jun
3-4 wk
21 Jun
5 Jul
5 wk after
Cornflower
Centaurea cyanus
20 May
17 Jul
0 wk
13 May
7 Jul
1 wk before
Statice
Limonium sinuatum
24 Mar – 7 Apr
11 May
8-10 wk
2 Jun
6 Jul
2 wk after
Sweet William
Dianthus barbatus
25 Mar – 8 Apr
6-8 wk
20 May
0 wk
25 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
7 – 21 Apr
25 May
6-8 wk
2 Jun
6 Jul
2 wk after
28 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
5 – 19 Apr
26 May
6-8 wk
31 May
7 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
15 Apr – 13 May
9 Jun
4-8 wk
10 Jun
7 Jul
3 wk after
10 Jun
27 Jun
3 wk after
Foxglove
Digitalis purpurea
11 – 25 Mar
8-10 wk
20 May
0 wk
30 May
1 wk after
Busy lizzie
Impatiens walleriana
29 Mar – 26 Apr
3 Jul
8-12 wk
21 Jun
28 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
7 – 21 Apr
4 Jun
6-8 wk
2 Jun
16 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Fleece
10 – 24 May
4-6 wk
21 Jun
5 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Mar
22 Apr
8-10 wk
22 May
17 Jun
0 wk
Love in a mist
Nigella damascena
20 May
2 Jul
0 wk
13 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
7 – 21 Apr
15 May
6-8 wk
2 Jun
26 Jun
2 wk after
28 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
27 Feb – 27 Mar
22 Apr
8-12 wk
22 May
17 Jun
0 wk
Cardoon
Cynara cardunculus
10 Mar – 7 Apr
23 Mar
8-12 wk
2 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
29 Mar – 26 Apr
30 Apr
8-12 wk
21 Jun
25 Jun
5 wk after
Globe amaranth
Gomphrena globosa
26 Apr – 10 May
14 May
6-8 wk
21 Jun
25 Jun
5 wk after
Corn poppy
Papaver rhoeas
20 May
17 Jul
0 wk
13 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
25 Feb – 25 Mar
12 May
8-12 wk
20 May
7 Jul
0 wk
25 May
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
12 – 26 Apr
21 May
8-10 wk
21 Jun
16 Jul
5 wk after
Sweet pea
Lathyrus odoratus
25 Mar – 15 Apr
2 Jun
5-8 wk
20 May
7 Jul
0 wk
Stock
Matthiola incana
25 Mar – 8 Apr
5 Jun
6-8 wk
20 May
17 Jul
0 wk
30 May
7 Jul
1 wk after
Wormwood
Artemisia absinthium
25 Mar – 8 Apr
6 May
6-8 wk
20 May
17 Jun
0 wk
30 May
7 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
10 – 24 May
23 May
4-6 wk
21 Jun
5 wk after
Garden pansy
Viola × wittrockiana
11 – 25 Mar
22 May
8-10 wk
20 May
17 Jul
0 wk
25 May
7 Jul
1 wk after
Petunia
Petunia
10 Mar – 7 Apr
11 May
8-12 wk
2 Jun
6 Jul
2 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Mar – 10 Apr
6 May
6-8 wk
22 May
17 Jun
0 wk
25 Jun
5 wk after
Common zinnia
Zinnia elegans
21 Apr – 5 May
15 Jun
4-6 wk
2 Jun
13 Jul
2 wk after
Common morning glory
Ipomoea purpurea
17 – 31 May
14 Jun
3-5 wk
21 Jun
5 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
21 Apr – 5 May
9 Jun
4-6 wk
2 Jun
7 Jul
2 wk after
25 Jun
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
19 Apr – 17 May
30 May
8-12 wk
12 Jul
25 Jul
8 wk after
Bee balm
Monarda didyma
25 Feb – 25 Mar
22 Apr
8-12 wk
20 May
17 Jun
0 wk
10 Jun
3 wk after
Yarrow
Achillea millefolium
25 Mar – 8 Apr
6 Apr
6-8 wk
20 May
0 wk
30 May
1 wk after
Safflower
Carthamus tinctorius
20 May
17 Jun
0 wk
13 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
25 Mar – 8 Apr
26 May
6-8 wk
20 May
7 Jul
0 wk
11 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
8 – 22 Apr
9 Jun
4-6 wk
20 May
7 Jul
0 wk
30 May
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
29 Mar – 12 Apr
4 Apr
10-12 wk
21 Jun
5 wk after
Sunflower
Helianthus annuus
5 – 12 May
16 Jun
3-4 wk
2 Jun
7 Jul
2 wk after
10 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
7 – 21 Apr
5 Jun
6-8 wk
2 Jun
17 Jul
2 wk after
25 Jun
7 Jul
5 wk after
Annual phlox
Phlox drummondii
31 Mar – 14 Apr
4 Jun
6-8 wk
26 May
16 Jul
1 wk after
25 Jun
6 Jul
5 wk after
Hollyhock
Alcea rosea
25 Mar – 8 Apr
6-8 wk
20 May
0 wk
30 May
1 wk after
Alpine delphinium
Delphinium elatum
25 Feb – 25 Mar
22 Apr
8-12 wk
20 May
17 Jun
0 wk
10 Jun
3 wk after
African marigold
Tagetes erecta
7 – 21 Apr
4 Jun
6-8 wk
2 Jun
16 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
27 Mar – 10 Apr
26 May
6-8 wk
22 May
7 Jul
0 wk
25 Jun
27 Jun
5 wk after
Wood sage
Salvia nemorosa
11 – 25 Mar
12 Apr
8-10 wk
20 May
7 Jun
0 wk
10 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
12 Apr – 10 May
24 May
6-10 wk
21 Jun
5 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
20 May
17 Jul
0 wk
13 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
24 Mar – 7 Apr
12 May
8-10 wk
2 Jun
7 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
25 Mar – 8 Apr
6 May
6-8 wk
20 May
17 Jun
0 wk
30 May
7 Jun
1 wk after