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No frost in sight Last frost normally in 6 days (15 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 15 May Frost 1 of 4 years · 20 years of data
Frost-free season 155 days 15 May – 17 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)
27 Mar – 10 Apr
16 Jun
5-7 wk
15 May
21 Jul
0 wk
19 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 Apr
28 Jun
4-6 wk
15 May
26 Jul
0 wk
19 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Fleece
19 Mar – 16 Apr
13 Apr
8-12 wk
11 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
27 Mar – 10 Apr
11 Jun
5-7 wk
15 May
16 Jul
0 wk
15 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
30 May – 6 Jun
7 Jun
3-4 wk
27 Jun
28 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
8 Jun
4-5 wk
27 Jun
6 Jul
6 wk after
3 Jul
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
4 – 11 Jun
3-4 wk
2 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
20 Feb – 20 Mar
1 Apr
8-12 wk
15 May
27 May
0 wk
5 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 May
16 Jun
1 wk after
19 May
6 Jun
1 wk after
Maize
Zea mays
14 – 21 May
28 May
3-4 wk
11 Jun
18 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 Apr – 2 May
5 Jul
3-4 wk
23 May
26 Jul
1 wk after
5 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
15 May
6 Jul
0 wk
15 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
27 Mar – 10 Apr
11 Jun
5-7 wk
15 May
16 Jul
0 wk
15 May
6 Jul
0 wk
Potato
Solanum tuberosum
19 Apr – 3 May
6 Jun
4-6 wk
31 May
4 Jul
2 wk after
31 May
24 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
27 Mar – 10 Apr
21 Jun
5-7 wk
15 May
26 Jul
0 wk
19 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
30 May – 6 Jun
24 Jun
3-4 wk
27 Jun
15 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 Apr – 2 May
22 Jun
3-4 wk
23 May
13 Jul
1 wk after
5 Jun
3 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Lettuce
Lactuca sativa
17 – 24 Apr
10 Jul
3-4 wk
15 May
31 Jul
0 wk
19 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Apr – 1 May
2 Jun
2-4 wk
15 May
16 Jun
0 wk
15 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 May
16 Jun
1 wk after
19 May
6 Jun
1 wk after
Spinach
Spinacia oleracea
17 – 24 Apr
25 Jul
3-4 wk
15 May
15 Aug
0 wk
11 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
16 – 30 Jun
4-6 wk
28 Jul
11 wk after
Garden tomato
Solanum lycopersicum
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
14 – 28 May
26 Jun
2-4 wk
11 Jun
10 Jul
4 wk after
3 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Garden pea
Pisum sativum
17 – 24 Apr
25 Jun
3-4 wk
15 May
16 Jul
0 wk
19 May
6 Jul
1 wk after

Herbs

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