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Rel. frost
Last spring frost (0°C) 14 May Frost 9 of 10 years · 20 years of data
Frost-free season 110 days 14 May – 1 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)
26 Mar – 9 Apr
16 Jun
5-7 wk
14 May
21 Jul
0 wk
7 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
28 Jun
4-6 wk
14 May
26 Jul
0 wk
7 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
1 – 29 Mar
8-12 wk
24 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
26 Mar – 9 Apr
11 Jun
5-7 wk
14 May
16 Jul
0 wk
2 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
26 Apr – 3 May
3-4 wk
24 May
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
29 Apr – 6 May
20 May
4-5 wk
3 Jun
17 Jun
3 wk after
4 Jun
7 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
20 Mar
8-12 wk
14 May
15 May
0 wk
24 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
4 Jun
1 wk before
7 May
25 May
1 wk before
Maize
Zea mays
Season too short
18 – 25 Apr
3-4 wk
16 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
16 Jun
3-4 wk
19 May
7 Jul
1 wk after
24 May
27 Jun
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 May
28 Jun
0 wk
2 May
18 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
26 Mar – 9 Apr
11 Jun
5-7 wk
14 May
16 Jul
0 wk
2 May
6 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
13 May
4-6 wk
19 May
10 Jun
1 wk after
19 May
31 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
26 Mar – 9 Apr
13 Jun
5-7 wk
14 May
18 Jul
0 wk
7 May
8 Jul
1 wk before
Pumpkin
Cucurbita pepo
Season too short
26 Apr – 3 May
3-4 wk
24 May
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
21 May
3-4 wk
19 May
11 Jun
1 wk after
24 May
1 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 Apr
2 Jul
3-4 wk
14 May
23 Jul
0 wk
7 May
13 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Apr
22 May
2-4 wk
2 May
5 Jun
2 wk before
2 May
26 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
4 Jun
1 wk before
7 May
25 May
1 wk before
Spinach
Spinacia oleracea
16 – 23 Apr
25 Jul
3-4 wk
14 May
15 Aug
0 wk
26 Apr
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
21 Mar – 4 Apr
6-8 wk
16 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
18 Apr – 2 May
2-4 wk
16 May
0 wk
24 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
23 Jun
4-6 wk
14 May
21 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 Apr
17 Jun
3-4 wk
14 May
8 Jul
0 wk
7 May
28 Jun
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
12 – 26 Apr
4-6 wk
24 May
1 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
13 May
8-10 wk
14 May
8 Jul
0 wk
4 Jun
28 Jun
3 wk after
Dill
Anethum graveolens
7 May
7 Jul
1 wk before
Wild chives
Allium schoenoprasum
19 Mar – 2 Apr
4 Jun
6-8 wk
14 May
16 Jul
0 wk
7 May
6 Jul
1 wk before
Spearmint
Mentha spicata
19 Feb – 19 Mar
21 May
8-12 wk
14 May
16 Jul
0 wk
4 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
14 May
27 Jul
0 wk
24 May
17 Jul
1 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
6 May
8-10 wk
19 May
1 Jul
1 wk after
Common thyme
Thymus vulgaris
5 – 19 Mar
11 May
8-10 wk
14 May
6 Jul
0 wk
Oregano
Origanum vulgare
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
4 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
7 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
10 Mar
10-14 wk
19 May
19 May
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
26 Apr – 3 May
3-4 wk
24 May
1 wk after
Cornflower
Centaurea cyanus
14 May
16 Jul
0 wk
7 May
6 Jul
1 wk before
Statice
Limonium sinuatum
Greenhouse
7 – 21 Mar
26 Mar
8-10 wk
16 May
21 May
0 wk
Sweet William
Dianthus barbatus
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
19 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
21 Mar – 4 Apr
9 Apr
6-8 wk
16 May
21 May
0 wk
11 Jun
4 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
19 Mar – 2 Apr
14 Apr
6-8 wk
14 May
26 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
29 Mar – 26 Apr
3 Apr
4-8 wk
24 May
1 wk after
24 May
1 wk after
Foxglove
Digitalis purpurea
5 – 19 Mar
8-10 wk
14 May
0 wk
24 May
1 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
1 – 29 Mar
1 May
8-12 wk
24 May
26 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
21 Mar – 4 Apr
19 Apr
6-8 wk
16 May
31 May
0 wk
Hyacinth bean
Dolichos lablab
Season too short
22 Apr – 6 May
4-6 wk
3 Jun
3 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
2 Apr
8-10 wk
19 May
28 May
1 wk after
Love in a mist
Nigella damascena
14 May
23 Jun
0 wk
7 May
13 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
21 Mar – 4 Apr
30 Mar
6-8 wk
16 May
0 wk
11 Jun
4 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
2 Apr
8-12 wk
19 May
28 May
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
21 Feb – 21 Mar
22 Mar
8-12 wk
16 May
17 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
1 – 29 Mar
8-12 wk
24 May
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
29 Mar – 12 Apr
6-8 wk
24 May
1 wk after
Corn poppy
Papaver rhoeas
14 May
8 Jul
0 wk
7 May
28 Jun
1 wk before
Snapdragon
Antirrhinum majus
19 Feb – 19 Mar
3 May
8-12 wk
14 May
28 Jun
0 wk
19 May
18 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
15 – 29 Mar
5 Apr
8-10 wk
24 May
31 May
1 wk after
Sweet pea
Lathyrus odoratus
19 Mar – 9 Apr
1 Jun
5-8 wk
14 May
6 Jul
0 wk
Stock
Matthiola incana
19 Mar – 2 Apr
27 May
6-8 wk
14 May
8 Jul
0 wk
24 May
28 Jun
1 wk after
Wormwood
Artemisia absinthium
19 Mar – 2 Apr
5 May
6-8 wk
14 May
16 Jun
0 wk
24 May
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
12 – 26 Apr
4-6 wk
24 May
1 wk after
Garden pansy
Viola × wittrockiana
5 – 19 Mar
21 May
8-10 wk
14 May
16 Jul
0 wk
19 May
6 Jul
1 wk after
Petunia
Petunia
Greenhouse
21 Feb – 21 Mar
26 Mar
8-12 wk
16 May
21 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
16 Apr
6-8 wk
19 May
28 May
1 wk after
19 Jun
5 wk after
Common zinnia
Zinnia elegans
Greenhouse
4 – 18 Apr
13 Apr
4-6 wk
16 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
19 Apr – 3 May
3-5 wk
24 May
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
4 – 18 Apr
28 Apr
4-6 wk
16 May
26 May
0 wk
24 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
11 Mar – 8 Apr
8-12 wk
3 Jun
3 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
13 Apr
8-12 wk
14 May
8 Jun
0 wk
4 Jun
3 wk after
Yarrow
Achillea millefolium
19 Mar – 2 Apr
5 Apr
6-8 wk
14 May
17 May
0 wk
24 May
1 wk after
Safflower
Carthamus tinctorius
14 May
16 Jun
0 wk
7 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
19 Mar – 2 Apr
25 May
6-8 wk
14 May
6 Jul
0 wk
5 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
2 – 16 Apr
31 May
4-6 wk
14 May
28 Jun
0 wk
24 May
18 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
1 – 15 Mar
10-12 wk
24 May
1 wk after
Sunflower
Helianthus annuus
6 – 13 May
18 May
3-4 wk
3 Jun
8 Jun
3 wk after
4 Jun
3 wk after
China aster
Callistephus chinensis
8 – 22 Apr
7 May
6-8 wk
3 Jun
18 Jun
3 wk after
19 Jun
5 wk after
Annual phlox
Phlox drummondii
Greenhouse
19 Mar – 2 Apr
19 Apr
6-8 wk
14 May
31 May
0 wk
24 May
1 wk after
Hollyhock
Alcea rosea
19 Mar – 2 Apr
6-8 wk
14 May
0 wk
24 May
1 wk after
Alpine delphinium
Delphinium elatum
19 Feb – 19 Mar
13 Apr
8-12 wk
14 May
8 Jun
0 wk
4 Jun
3 wk after
African marigold
Tagetes erecta
Greenhouse
21 Mar – 4 Apr
19 Apr
6-8 wk
16 May
31 May
0 wk
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
27 Apr
6-8 wk
19 May
8 Jun
1 wk after
19 Jun
5 wk after
Wood sage
Salvia nemorosa
5 – 19 Mar
3 Apr
8-10 wk
14 May
29 May
0 wk
4 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
15 Mar – 12 Apr
6-10 wk
24 May
1 wk after
California goldenpoppy
Eschscholzia californica
14 May
3 Jul
0 wk
7 May
23 Jun
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
15 – 29 Mar
22 Apr
8-10 wk
24 May
17 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
19 Mar – 2 Apr
5 May
6-8 wk
14 May
16 Jun
0 wk
24 May
6 Jun
1 wk after