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0.6°
Near frost tonight at 04:00. Bring in or cover sensitive plants
-3.3°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 9 May Normal year · 20 years of data
Frost-free season 148 days 9 May – 4 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)
21 Mar – 4 Apr
18 Jun
5-7 wk
9 May
23 Jul
0 wk
2 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
28 Mar – 11 Apr
30 Jun
4-6 wk
9 May
28 Jul
0 wk
2 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
22 Mar – 19 Apr
26 Mar
8-12 wk
14 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Mar – 4 Apr
13 Jun
5-7 wk
9 May
18 Jul
0 wk
27 Apr
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
17 – 24 May
10 Jun
3-4 wk
14 Jun
1 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
10 – 17 May
5 Jun
4-5 wk
14 Jun
3 Jul
5 wk after
14 Jun
23 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
24 – 31 May
30 May
3-4 wk
21 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
14 Feb – 14 Mar
3 Apr
8-12 wk
9 May
29 May
0 wk
19 May
19 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 May
18 Jun
1 wk before
2 May
8 Jun
1 wk before
Maize
Zea mays
30 Apr – 7 May
31 May
3-4 wk
28 May
21 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
17 – 24 Apr
7 Jul
3-4 wk
15 May
28 Jul
1 wk after
19 May
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 May
8 Jul
0 wk
27 Apr
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Mar – 4 Apr
13 Jun
5-7 wk
9 May
18 Jul
0 wk
27 Apr
8 Jul
2 wk before
Potato
Solanum tuberosum
2 – 16 Apr
7 Jun
4-6 wk
14 May
5 Jul
1 wk after
14 May
25 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Mar – 4 Apr
23 Jun
5-7 wk
9 May
28 Jul
0 wk
2 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
17 – 24 May
23 Jun
3-4 wk
14 Jun
14 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
17 – 24 Apr
19 Jun
3-4 wk
15 May
10 Jul
1 wk after
19 May
30 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Mar – 11 Apr
25 Jun
4-6 wk
9 May
23 Jul
0 wk
Lettuce
Lactuca sativa
11 – 18 Apr
12 Jul
3-4 wk
9 May
2 Aug
0 wk
2 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Mar – 11 Apr
25 Jun
4-6 wk
9 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Mar – 13 Apr
4 Jun
2-4 wk
27 Apr
18 Jun
2 wk before
27 Apr
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 May
18 Jun
1 wk before
2 May
8 Jun
1 wk before
Spinach
Spinacia oleracea
11 – 18 Apr
27 Jul
3-4 wk
9 May
17 Aug
0 wk
21 Apr
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
5 – 19 Jun
4-6 wk
17 Jul
10 wk after
Garden tomato
Solanum lycopersicum
2 – 16 Apr
10 May
6-8 wk
28 May
21 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
30 Apr – 14 May
25 Jun
2-4 wk
28 May
9 Jul
3 wk after
14 Jun
29 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Mar – 11 Apr
25 Jun
4-6 wk
9 May
23 Jul
0 wk
Garden pea
Pisum sativum
11 – 18 Apr
27 Jun
3-4 wk
9 May
18 Jul
0 wk
2 May
8 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
3 – 17 May
1 Jun
4-6 wk
14 Jun
29 Jun
5 wk after
Lemon balm
Melissa officinalis
28 Feb – 14 Mar
23 May
8-10 wk
9 May
18 Jul
0 wk
30 May
8 Jul
3 wk after
Dill
Anethum graveolens
2 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
14 – 28 Mar
6 Jun
6-8 wk
9 May
18 Jul
0 wk
2 May
8 Jul
1 wk before
Spearmint
Mentha spicata
14 Feb – 14 Mar
23 May
8-12 wk
9 May
18 Jul
0 wk
30 May
8 Jul
3 wk after
Coriander
Coriandrum sativum
9 May
17 Aug
0 wk
19 May
7 Aug
1 wk after
Garden sage
Salvia officinalis
6 – 20 Mar
8 May
8-10 wk
15 May
3 Jul
1 wk after
Common thyme
Thymus vulgaris
28 Feb – 14 Mar
13 May
8-10 wk
9 May
8 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Mar
27 May
6-8 wk
9 May
8 Jul
0 wk
30 May
28 Jun
3 wk after
Parsley
Petroselinum crispum
14 – 28 Mar
27 May
6-8 wk
9 May
8 Jul
0 wk
2 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
6 Feb – 6 Mar
9 Apr
10-14 wk
15 May
18 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
17 – 24 May
8 Jun
3-4 wk
14 Jun
29 Jun
5 wk after
Cornflower
Centaurea cyanus
9 May
18 Jul
0 wk
2 May
8 Jul
1 wk before
Statice
Limonium sinuatum
19 Mar – 2 Apr
7 May
8-10 wk
28 May
2 Jul
3 wk after
Sweet William
Dianthus barbatus
14 – 28 Mar
6-8 wk
9 May
0 wk
14 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
2 – 16 Apr
21 May
6-8 wk
28 May
2 Jul
3 wk after
17 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
28 Mar – 11 Apr
27 May
6-8 wk
23 May
8 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
4 Apr – 2 May
10 Jun
4-8 wk
30 May
8 Jul
3 wk after
30 May
28 Jun
3 wk after
Foxglove
Digitalis purpurea
28 Feb – 14 Mar
8-10 wk
9 May
0 wk
19 May
1 wk after
Busy lizzie
Impatiens walleriana
22 Mar – 19 Apr
30 Jun
8-12 wk
14 Jun
25 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
2 – 16 Apr
31 May
6-8 wk
28 May
12 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Fleece
3 – 17 May
4-6 wk
14 Jun
5 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Mar
23 Apr
8-10 wk
15 May
18 Jun
1 wk after
Love in a mist
Nigella damascena
9 May
3 Jul
0 wk
2 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
2 – 16 Apr
11 May
6-8 wk
28 May
22 Jun
3 wk after
17 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
20 Feb – 20 Mar
23 Apr
8-12 wk
15 May
18 Jun
1 wk after
Cardoon
Cynara cardunculus
5 Mar – 2 Apr
24 Mar
8-12 wk
28 May
3 wk after
Regal-foxtail
Ptilotus nobilis
22 Mar – 19 Apr
24 Apr
8-12 wk
14 Jun
19 Jun
5 wk after
Globe amaranth
Gomphrena globosa
19 Apr – 3 May
8 May
6-8 wk
14 Jun
19 Jun
5 wk after
Corn poppy
Papaver rhoeas
9 May
18 Jul
0 wk
2 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
14 Feb – 14 Mar
13 May
8-12 wk
9 May
8 Jul
0 wk
14 May
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
5 – 19 Apr
17 May
8-10 wk
14 Jun
12 Jul
5 wk after
Sweet pea
Lathyrus odoratus
14 Mar – 4 Apr
3 Jun
5-8 wk
9 May
8 Jul
0 wk
Stock
Matthiola incana
14 – 28 Mar
6 Jun
6-8 wk
9 May
18 Jul
0 wk
19 May
8 Jul
1 wk after
Wormwood
Artemisia absinthium
14 – 28 Mar
7 May
6-8 wk
9 May
18 Jun
0 wk
19 May
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
3 – 17 May
17 May
4-6 wk
14 Jun
14 Jun
5 wk after
Garden pansy
Viola × wittrockiana
28 Feb – 14 Mar
23 May
8-10 wk
9 May
18 Jul
0 wk
14 May
8 Jul
1 wk after
Petunia
Petunia
5 Mar – 2 Apr
7 May
8-12 wk
28 May
2 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Mar – 3 Apr
7 May
6-8 wk
15 May
18 Jun
1 wk after
14 Jun
5 wk after
Common zinnia
Zinnia elegans
16 – 30 Apr
12 Jun
4-6 wk
28 May
10 Jul
3 wk after
Common morning glory
Ipomoea purpurea
10 – 24 May
8 Jun
3-5 wk
14 Jun
29 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
16 – 30 Apr
10 Jun
4-6 wk
28 May
8 Jul
3 wk after
14 Jun
28 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
3 Apr – 1 May
24 May
8-12 wk
26 Jun
19 Jul
7 wk after
Bee balm
Monarda didyma
14 Feb – 14 Mar
23 Apr
8-12 wk
9 May
18 Jun
0 wk
30 May
8 Jun
3 wk after
Yarrow
Achillea millefolium
14 – 28 Mar
7 Apr
6-8 wk
9 May
19 May
0 wk
19 May
1 wk after
Safflower
Carthamus tinctorius
9 May
18 Jun
0 wk
2 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Mar
27 May
6-8 wk
9 May
8 Jul
0 wk
31 Mar
28 Jun
6 wk before
Bishop's flower
Ammi majus
28 Mar – 11 Apr
10 Jun
4-6 wk
9 May
8 Jul
0 wk
19 May
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
22 Mar – 5 Apr
1 Apr
10-12 wk
14 Jun
5 wk after
Sunflower
Helianthus annuus
30 Apr – 7 May
17 Jun
3-4 wk
28 May
8 Jul
3 wk after
30 May
28 Jun
3 wk after
China aster
Callistephus chinensis
2 – 16 Apr
6 Jun
6-8 wk
28 May
18 Jul
3 wk after
14 Jun
8 Jul
5 wk after
Annual phlox
Phlox drummondii
25 Mar – 8 Apr
31 May
6-8 wk
20 May
12 Jul
2 wk after
14 Jun
2 Jul
5 wk after
Hollyhock
Alcea rosea
14 – 28 Mar
6-8 wk
9 May
0 wk
19 May
1 wk after
Alpine delphinium
Delphinium elatum
14 Feb – 14 Mar
23 Apr
8-12 wk
9 May
18 Jun
0 wk
30 May
8 Jun
3 wk after
African marigold
Tagetes erecta
2 – 16 Apr
31 May
6-8 wk
28 May
12 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
20 Mar – 3 Apr
27 May
6-8 wk
15 May
8 Jul
1 wk after
14 Jun
28 Jun
5 wk after
Wood sage
Salvia nemorosa
28 Feb – 14 Mar
13 Apr
8-10 wk
9 May
8 Jun
0 wk
30 May
3 wk after
Black-eyed susan vine
Thunbergia alata
5 Apr – 3 May
18 May
6-10 wk
14 Jun
29 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
9 May
18 Jul
0 wk
2 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
19 Mar – 2 Apr
8 May
8-10 wk
28 May
3 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Mar
7 May
6-8 wk
9 May
18 Jun
0 wk
19 May
8 Jun
1 wk after