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-0.1°
Slight frost tonight at 05:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 4 May Frost 9 of 10 years · 20 years of data
Frost-free season 133 days 4 May – 14 Sep
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

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