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-0.5°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Frost is lingering Last frost normally 10 May, The 10-day forecast shows frost Mon.
Method
Rel. frost
Last spring frost (0°C) 10 May Normal year · 20 years of data
Frost-free season 148 days 10 May – 5 Oct
Probability that frost is over

50% = 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)
22 Mar – 5 Apr
20 Jun
5-7 wk
10 May
25 Jul
0 wk
4 May
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
29 Mar – 12 Apr
2 Jul
4-6 wk
10 May
30 Jul
0 wk
4 May
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
14 Mar – 11 Apr
14 Apr
8-12 wk
6 Jun
9 Jun
4 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
22 Mar – 5 Apr
15 Jun
5-7 wk
10 May
20 Jul
0 wk
27 Apr
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
23 – 30 May
8 Jun
3-4 wk
20 Jun
29 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
16 – 23 May
7 Jun
4-5 wk
20 Jun
5 Jul
6 wk after
20 Jun
25 Jun
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
2 – 9 Jun
3-4 wk
30 Jun
7 wk after
Onion
Allium cepa (Cepa-gruppen)
15 Feb – 15 Mar
5 Apr
8-12 wk
10 May
31 May
0 wk
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
4 May
20 Jun
1 wk before
4 May
10 Jun
1 wk before
Maize
Zea mays
9 – 16 May
29 May
3-4 wk
6 Jun
19 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 Apr
9 Jul
3-4 wk
10 May
30 Jul
0 wk
23 May
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 May
10 Jul
0 wk
27 Apr
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
22 Mar – 5 Apr
15 Jun
5-7 wk
10 May
20 Jul
0 wk
27 Apr
10 Jul
2 wk before
Potato
Solanum tuberosum
3 – 17 Apr
10 Jun
4-6 wk
15 May
8 Jul
1 wk after
15 May
28 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
22 Mar – 5 Apr
25 Jun
5-7 wk
10 May
30 Jul
0 wk
4 May
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
23 – 30 May
20 Jun
3-4 wk
20 Jun
11 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
12 – 19 Apr
18 Jun
3-4 wk
10 May
9 Jul
0 wk
23 May
29 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
29 Mar – 12 Apr
27 Jun
4-6 wk
10 May
25 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 Apr
14 Jul
3-4 wk
10 May
4 Aug
0 wk
4 May
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
29 Mar – 12 Apr
27 Jun
4-6 wk
10 May
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
30 Mar – 13 Apr
6 Jun
2-4 wk
27 Apr
20 Jun
2 wk before
27 Apr
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
4 May
20 Jun
1 wk before
4 May
10 Jun
1 wk before
Spinach
Spinacia oleracea
12 – 19 Apr
29 Jul
3-4 wk
10 May
19 Aug
0 wk
20 Apr
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
11 – 25 Jun
4-6 wk
23 Jul
11 wk after
Garden tomato
Solanum lycopersicum
11 – 25 Apr
8 May
6-8 wk
6 Jun
19 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
9 – 23 May
22 Jun
2-4 wk
6 Jun
6 Jul
4 wk after
20 Jun
26 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
29 Mar – 12 Apr
27 Jun
4-6 wk
10 May
25 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 Apr
29 Jun
3-4 wk
10 May
20 Jul
0 wk
4 May
10 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
9 – 23 May
29 May
4-6 wk
20 Jun
26 Jun
6 wk after
Lemon balm
Melissa officinalis
1 – 15 Mar
25 May
8-10 wk
10 May
20 Jul
0 wk
5 Jun
10 Jul
4 wk after
Dill
Anethum graveolens
4 May
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
15 – 29 Mar
8 Jun
6-8 wk
10 May
20 Jul
0 wk
4 May
10 Jul
1 wk before
Spearmint
Mentha spicata
15 Feb – 15 Mar
25 May
8-12 wk
10 May
20 Jul
0 wk
5 Jun
10 Jul
4 wk after
Coriander
Coriandrum sativum
10 May
19 Aug
0 wk
23 May
9 Aug
2 wk after
Garden sage
Salvia officinalis
1 – 15 Mar
10 May
8-10 wk
10 May
5 Jul
0 wk
Common thyme
Thymus vulgaris
1 – 15 Mar
15 May
8-10 wk
10 May
10 Jul
0 wk
Oregano
Origanum vulgare
15 – 29 Mar
29 May
6-8 wk
10 May
10 Jul
0 wk
5 Jun
30 Jun
4 wk after
Parsley
Petroselinum crispum
15 – 29 Mar
29 May
6-8 wk
10 May
10 Jul
0 wk
4 May
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
1 Feb – 1 Mar
11 Apr
10-14 wk
10 May
20 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
23 – 30 May
5 Jun
3-4 wk
20 Jun
26 Jun
6 wk after
Cornflower
Centaurea cyanus
10 May
20 Jul
0 wk
4 May
10 Jul
1 wk before
Statice
Limonium sinuatum
28 Mar – 11 Apr
9 May
8-10 wk
6 Jun
4 Jul
4 wk after
Sweet William
Dianthus barbatus
15 – 29 Mar
6-8 wk
10 May
0 wk
15 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
23 May
6-8 wk
6 Jun
4 Jul
4 wk after
23 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
6 – 20 Apr
29 May
6-8 wk
1 Jun
10 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
10 Apr – 8 May
12 Jun
4-8 wk
5 Jun
10 Jul
4 wk after
5 Jun
30 Jun
4 wk after
Foxglove
Digitalis purpurea
1 – 15 Mar
8-10 wk
10 May
0 wk
23 May
2 wk after
Busy lizzie
Impatiens walleriana
28 Mar – 25 Apr
30 Jun
8-12 wk
20 Jun
25 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
2 Jun
6-8 wk
6 Jun
14 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
4 wk after
Chinese lantern
Physalis alkekengi
1 – 15 Mar
25 Apr
8-10 wk
10 May
20 Jun
0 wk
Love in a mist
Nigella damascena
10 May
5 Jul
0 wk
4 May
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
11 – 25 Apr
13 May
6-8 wk
6 Jun
24 Jun
4 wk after
23 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
15 Feb – 15 Mar
25 Apr
8-12 wk
10 May
20 Jun
0 wk
Cardoon
Cynara cardunculus
14 Mar – 11 Apr
26 Mar
8-12 wk
6 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
28 Mar – 25 Apr
21 Apr
8-12 wk
20 Jun
6 wk after
Globe amaranth
Gomphrena globosa
25 Apr – 9 May
5 May
6-8 wk
20 Jun
6 wk after
Corn poppy
Papaver rhoeas
10 May
20 Jul
0 wk
4 May
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
15 Feb – 15 Mar
15 May
8-12 wk
10 May
10 Jul
0 wk
15 May
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
11 – 25 Apr
19 May
8-10 wk
20 Jun
14 Jul
6 wk after
Sweet pea
Lathyrus odoratus
15 Mar – 5 Apr
5 Jun
5-8 wk
10 May
10 Jul
0 wk
Stock
Matthiola incana
15 – 29 Mar
8 Jun
6-8 wk
10 May
20 Jul
0 wk
23 May
10 Jul
2 wk after
Wormwood
Artemisia absinthium
15 – 29 Mar
9 May
6-8 wk
10 May
20 Jun
0 wk
23 May
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
9 – 23 May
14 May
4-6 wk
20 Jun
6 wk after
Garden pansy
Viola × wittrockiana
1 – 15 Mar
25 May
8-10 wk
10 May
20 Jul
0 wk
15 May
10 Jul
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
9 May
8-12 wk
6 Jun
4 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
15 – 29 Mar
9 May
6-8 wk
10 May
20 Jun
0 wk
20 Jun
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
12 Jun
4-6 wk
6 Jun
10 Jul
4 wk after
Common morning glory
Ipomoea purpurea
16 – 30 May
5 Jun
3-5 wk
20 Jun
26 Jun
6 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
12 Jun
4-6 wk
6 Jun
10 Jul
4 wk after
20 Jun
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
15 Apr – 13 May
21 May
8-12 wk
8 Jul
16 Jul
8 wk after
Bee balm
Monarda didyma
15 Feb – 15 Mar
25 Apr
8-12 wk
10 May
20 Jun
0 wk
5 Jun
10 Jun
4 wk after
Yarrow
Achillea millefolium
15 – 29 Mar
9 Apr
6-8 wk
10 May
21 May
0 wk
23 May
2 wk after
Safflower
Carthamus tinctorius
10 May
20 Jun
0 wk
4 May
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
15 – 29 Mar
29 May
6-8 wk
10 May
10 Jul
0 wk
25 Mar
30 Jun
7 wk before
Bishop's flower
Ammi majus
29 Mar – 12 Apr
12 Jun
4-6 wk
10 May
10 Jul
0 wk
23 May
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
28 Mar – 11 Apr
1 Apr
10-12 wk
20 Jun
6 wk after
Sunflower
Helianthus annuus
9 – 16 May
19 Jun
3-4 wk
6 Jun
10 Jul
4 wk after
5 Jun
30 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
8 Jun
6-8 wk
6 Jun
20 Jul
4 wk after
20 Jun
10 Jul
6 wk after
Annual phlox
Phlox drummondii
2 – 16 Apr
2 Jun
6-8 wk
28 May
14 Jul
3 wk after
20 Jun
4 Jul
6 wk after
Hollyhock
Alcea rosea
15 – 29 Mar
6-8 wk
10 May
0 wk
23 May
2 wk after
Alpine delphinium
Delphinium elatum
15 Feb – 15 Mar
25 Apr
8-12 wk
10 May
20 Jun
0 wk
5 Jun
10 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
2 Jun
6-8 wk
6 Jun
14 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
15 – 29 Mar
29 May
6-8 wk
10 May
10 Jul
0 wk
20 Jun
30 Jun
6 wk after
Wood sage
Salvia nemorosa
1 – 15 Mar
15 Apr
8-10 wk
10 May
10 Jun
0 wk
5 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
11 Apr – 9 May
15 May
6-10 wk
20 Jun
26 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
10 May
20 Jul
0 wk
4 May
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
10 May
8-10 wk
6 Jun
5 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
15 – 29 Mar
9 May
6-8 wk
10 May
20 Jun
0 wk
23 May
10 Jun
2 wk after