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No frost in sight Last frost normally in 4 days (13 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 13 May Normal year · 20 years of data
Frost-free season 141 days 13 May – 1 Oct
Probability that frost is over

50% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
25 Mar – 8 Apr
13 Jun
5-7 wk
13 May
18 Jul
0 wk
14 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
1 – 15 Apr
25 Jun
4-6 wk
13 May
23 Jul
0 wk
14 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Mar – 8 Apr
8 Jun
5-7 wk
13 May
13 Jul
0 wk
13 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
19 – 26 May
22 May
3-4 wk
16 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
12 – 19 May
1 Jun
4-5 wk
16 Jun
29 Jun
5 wk after
25 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
26 May – 2 Jun
3-4 wk
23 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Feb – 18 Mar
29 Mar
8-12 wk
13 May
24 May
0 wk
26 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
14 May
13 Jun
0 wk
14 May
3 Jun
0 wk
Maize
Zea mays
5 – 12 May
12 May
3-4 wk
2 Jun
2 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
2 Jul
3-4 wk
19 May
23 Jul
1 wk after
26 May
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 May
3 Jul
0 wk
13 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Mar – 8 Apr
8 Jun
5-7 wk
13 May
13 Jul
0 wk
13 May
3 Jul
0 wk
Potato
Solanum tuberosum
11 – 25 Apr
1 Jun
4-6 wk
23 May
29 Jun
1 wk after
23 May
19 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Mar – 8 Apr
18 Jun
5-7 wk
13 May
23 Jul
0 wk
14 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
19 – 26 May
15 Jun
3-4 wk
16 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
10 Jun
3-4 wk
19 May
1 Jul
1 wk after
26 May
21 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
1 – 15 Apr
20 Jun
4-6 wk
13 May
18 Jul
0 wk
Lettuce
Lactuca sativa
15 – 22 Apr
7 Jul
3-4 wk
13 May
28 Jul
0 wk
14 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
1 – 15 Apr
20 Jun
4-6 wk
13 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
15 – 29 Apr
30 May
2-4 wk
13 May
13 Jun
0 wk
13 May
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
14 May
13 Jun
0 wk
14 May
3 Jun
0 wk
Spinach
Spinacia oleracea
15 – 22 Apr
22 Jul
3-4 wk
13 May
12 Aug
0 wk
10 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
7 – 21 Jun
4-6 wk
19 Jul
10 wk after
Garden tomato
Solanum lycopersicum
7 – 21 Apr
21 Apr
6-8 wk
2 Jun
2 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
5 – 19 May
17 Jun
2-4 wk
2 Jun
1 Jul
3 wk after
25 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
1 – 15 Apr
20 Jun
4-6 wk
13 May
18 Jul
0 wk
Garden pea
Pisum sativum
15 – 22 Apr
22 Jun
3-4 wk
13 May
13 Jul
0 wk
14 May
3 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
5 – 19 May
24 May
4-6 wk
16 Jun
21 Jun
5 wk after
Lemon balm
Melissa officinalis
4 – 18 Mar
18 May
8-10 wk
13 May
13 Jul
0 wk
7 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
14 May
23 Jul
0 wk
Wild chives
Allium schoenoprasum
18 Mar – 1 Apr
1 Jun
6-8 wk
13 May
13 Jul
0 wk
14 May
3 Jul
0 wk
Spearmint
Mentha spicata
18 Feb – 18 Mar
18 May
8-12 wk
13 May
13 Jul
0 wk
7 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
13 May
12 Aug
0 wk
26 May
2 Aug
2 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
3 May
8-10 wk
19 May
28 Jun
1 wk after
Common thyme
Thymus vulgaris
4 – 18 Mar
8 May
8-10 wk
13 May
3 Jul
0 wk
Oregano
Origanum vulgare
18 Mar – 1 Apr
22 May
6-8 wk
13 May
3 Jul
0 wk
7 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
18 Mar – 1 Apr
22 May
6-8 wk
13 May
3 Jul
0 wk
14 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
4 Apr
10-14 wk
19 May
13 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
19 – 26 May
31 May
3-4 wk
16 Jun
21 Jun
5 wk after
Cornflower
Centaurea cyanus
13 May
13 Jul
0 wk
14 May
3 Jul
0 wk
Statice
Limonium sinuatum
24 Mar – 7 Apr
30 Apr
8-10 wk
2 Jun
25 Jun
3 wk after
Sweet William
Dianthus barbatus
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
23 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
7 – 21 Apr
14 May
6-8 wk
2 Jun
25 Jun
3 wk after
19 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
2 – 16 Apr
19 May
6-8 wk
28 May
30 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
12 Apr – 10 May
2 Jun
4-8 wk
7 Jun
30 Jun
4 wk after
7 Jun
20 Jun
4 wk after
Foxglove
Digitalis purpurea
4 – 18 Mar
8-10 wk
13 May
0 wk
26 May
2 wk after
Busy lizzie
Impatiens walleriana
24 Mar – 21 Apr
21 Jun
8-12 wk
16 Jun
16 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
7 – 21 Apr
24 May
6-8 wk
2 Jun
5 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
21 Apr – 5 May
4 May
4-6 wk
2 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
18 Apr
8-10 wk
19 May
13 Jun
1 wk after
Love in a mist
Nigella damascena
13 May
28 Jun
0 wk
14 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
7 – 21 Apr
4 May
6-8 wk
2 Jun
15 Jun
3 wk after
19 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
18 Apr
8-12 wk
19 May
13 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
1 – 29 Mar
19 Mar
8-12 wk
24 May
2 wk after
Regal-foxtail
Ptilotus nobilis
24 Mar – 21 Apr
16 Apr
8-12 wk
16 Jun
5 wk after
Globe amaranth
Gomphrena globosa
21 Apr – 5 May
30 Apr
6-8 wk
16 Jun
5 wk after
Corn poppy
Papaver rhoeas
13 May
13 Jul
0 wk
14 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
18 Feb – 18 Mar
8 May
8-12 wk
13 May
3 Jul
0 wk
23 May
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
7 – 21 Apr
10 May
8-10 wk
16 Jun
5 Jul
5 wk after
Sweet pea
Lathyrus odoratus
18 Mar – 8 Apr
29 May
5-8 wk
13 May
3 Jul
0 wk
Stock
Matthiola incana
18 Mar – 1 Apr
1 Jun
6-8 wk
13 May
13 Jul
0 wk
26 May
3 Jul
2 wk after
Wormwood
Artemisia absinthium
18 Mar – 1 Apr
2 May
6-8 wk
13 May
13 Jun
0 wk
26 May
3 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
5 – 19 May
9 May
4-6 wk
16 Jun
5 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Mar
18 May
8-10 wk
13 May
13 Jul
0 wk
23 May
3 Jul
1 wk after
Petunia
Petunia
10 Mar – 7 Apr
30 Apr
8-12 wk
2 Jun
25 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
2 May
6-8 wk
19 May
13 Jun
1 wk after
25 Jun
6 wk after
Common zinnia
Zinnia elegans
21 Apr – 5 May
3 Jun
4-6 wk
2 Jun
1 Jul
3 wk after
Common morning glory
Ipomoea purpurea
12 – 26 May
31 May
3-5 wk
16 Jun
21 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
21 Apr – 5 May
2 Jun
4-6 wk
2 Jun
30 Jun
3 wk after
25 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
5 Apr – 3 May
16 May
8-12 wk
28 Jun
11 Jul
7 wk after
Bee balm
Monarda didyma
18 Feb – 18 Mar
18 Apr
8-12 wk
13 May
13 Jun
0 wk
7 Jun
4 wk after
Yarrow
Achillea millefolium
18 Mar – 1 Apr
2 Apr
6-8 wk
13 May
14 May
0 wk
26 May
2 wk after
Safflower
Carthamus tinctorius
13 May
13 Jun
0 wk
14 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
18 Mar – 1 Apr
22 May
6-8 wk
13 May
3 Jul
0 wk
27 Apr
23 Jun
2 wk before
Bishop's flower
Ammi majus
1 – 15 Apr
5 Jun
4-6 wk
13 May
3 Jul
0 wk
26 May
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
10 – 24 Mar
1 Apr
10-12 wk
2 Jun
10 Jun
3 wk after
Sunflower
Helianthus annuus
5 – 12 May
12 Jun
3-4 wk
2 Jun
3 Jul
3 wk after
7 Jun
23 Jun
4 wk after
China aster
Callistephus chinensis
7 – 21 Apr
1 Jun
6-8 wk
2 Jun
13 Jul
3 wk after
25 Jun
3 Jul
6 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
24 May
6-8 wk
24 May
5 Jul
2 wk after
25 Jun
25 Jun
6 wk after
Hollyhock
Alcea rosea
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
26 May
2 wk after
Alpine delphinium
Delphinium elatum
18 Feb – 18 Mar
18 Apr
8-12 wk
13 May
13 Jun
0 wk
7 Jun
4 wk after
African marigold
Tagetes erecta
7 – 21 Apr
24 May
6-8 wk
2 Jun
5 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
22 May
6-8 wk
19 May
3 Jul
1 wk after
25 Jun
6 wk after
Wood sage
Salvia nemorosa
4 – 18 Mar
8 Apr
8-10 wk
13 May
3 Jun
0 wk
7 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
7 Apr – 5 May
10 May
6-10 wk
16 Jun
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
13 May
13 Jul
0 wk
14 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
24 Mar – 7 Apr
4 May
8-10 wk
2 Jun
29 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
18 Mar – 1 Apr
2 May
6-8 wk
13 May
13 Jun
0 wk
26 May
3 Jun
2 wk after