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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 10 years · 20 years of data
Frost-free season 139 days 26 May – 12 Oct
Probability that frost is over

90% = 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)
7 – 21 Apr
16 Jun
5-7 wk
26 May
21 Jul
0 wk
19 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
28 Jun
4-6 wk
26 May
26 Jul
0 wk
19 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
11 Jun
5-7 wk
26 May
16 Jul
0 wk
14 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
4 – 11 May
17 May
3-4 wk
1 Jun
7 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
8 Jun
4-5 wk
27 Jun
6 Jul
5 wk after
1 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
1 Apr
8-12 wk
26 May
27 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 May
16 Jun
1 wk before
19 May
6 Jun
1 wk before
Maize
Zea mays
Greenhouse
28 Apr – 5 May
7 May
3-4 wk
26 May
28 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
5 Jul
3-4 wk
28 May
26 Jul
0 wk
5 Jun
16 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
6 Jul
0 wk
14 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
11 Jun
5-7 wk
26 May
16 Jul
0 wk
14 May
6 Jul
2 wk before
Potato
Solanum tuberosum
19 Apr – 3 May
8 Jun
4-6 wk
31 May
6 Jul
1 wk after
31 May
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
21 Jun
5-7 wk
26 May
26 Jul
0 wk
19 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
11 – 18 May
22 May
3-4 wk
8 Jun
12 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
16 Jun
3-4 wk
28 May
7 Jul
0 wk
5 Jun
27 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
10 Jul
3-4 wk
26 May
31 Jul
0 wk
19 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
2 Jun
2-4 wk
14 May
16 Jun
2 wk before
14 May
6 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 May
16 Jun
1 wk before
19 May
6 Jun
1 wk before
Spinach
Spinacia oleracea
28 Apr – 5 May
25 Jul
3-4 wk
26 May
15 Aug
0 wk
8 May
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
31 Mar – 14 Apr
16 Apr
6-8 wk
26 May
28 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
4 – 18 May
24 May
2-4 wk
1 Jun
7 Jun
1 wk after
16 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
25 Jun
3-4 wk
26 May
16 Jul
0 wk
19 May
6 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
Fleece
27 Apr – 11 May
30 Apr
4-6 wk
8 Jun
2 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
21 May
8-10 wk
26 May
16 Jul
0 wk
16 Jun
6 Jul
3 wk after
Dill
Anethum graveolens
19 May
26 Jul
1 wk before
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
4 Jun
6-8 wk
26 May
16 Jul
0 wk
19 May
6 Jul
1 wk before
Spearmint
Mentha spicata
3 – 31 Mar
21 May
8-12 wk
26 May
16 Jul
0 wk
16 Jun
6 Jul
3 wk after
Coriander
Coriandrum sativum
26 May
15 Aug
0 wk
5 Jun
5 Aug
1 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
6 May
8-10 wk
28 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
11 May
8-10 wk
26 May
6 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
16 Jun
26 Jun
3 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
19 May
26 Jun
1 wk before
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
7 Apr
10-14 wk
28 May
16 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
Fleece
11 – 18 May
3-4 wk
8 Jun
2 wk after
Cornflower
Centaurea cyanus
26 May
16 Jul
0 wk
19 May
6 Jul
1 wk before
Statice
Limonium sinuatum
30 Mar – 13 Apr
1 Apr
8-10 wk
8 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
31 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
15 Apr
6-8 wk
8 Jun
2 wk after
3 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
19 Apr
6-8 wk
6 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
10 Apr – 8 May
25 May
4-8 wk
5 Jun
22 Jun
1 wk after
5 Jun
12 Jun
1 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
5 Jun
1 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
18 May
8-12 wk
27 Jun
13 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
25 Apr
6-8 wk
8 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
21 Apr
8-10 wk
28 May
16 Jun
0 wk
Love in a mist
Nigella damascena
26 May
1 Jul
0 wk
19 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
6 – 20 Apr
25 Apr
6-8 wk
1 Jun
6 Jun
1 wk after
11 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
21 Apr
8-12 wk
28 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
16 Mar – 13 Apr
22 Mar
8-12 wk
8 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
9 Mar – 6 Apr
5 Apr
8-12 wk
1 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
6 – 20 Apr
19 Apr
6-8 wk
1 Jun
1 wk after
Corn poppy
Papaver rhoeas
26 May
16 Jul
0 wk
19 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
3 – 31 Mar
11 May
8-12 wk
26 May
6 Jul
0 wk
31 May
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
8-10 wk
27 Jun
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
1 Jun
5-8 wk
26 May
6 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
4 Jun
6-8 wk
26 May
16 Jul
0 wk
5 Jun
6 Jul
1 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
5 Jun
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
20 Apr – 4 May
28 Apr
4-6 wk
1 Jun
1 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
21 May
8-10 wk
26 May
16 Jul
0 wk
31 May
6 Jul
1 wk after
Petunia
Petunia
16 Mar – 13 Apr
1 Apr
8-12 wk
8 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
5 May
6-8 wk
28 May
16 Jun
0 wk
1 Jul
5 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
30 Apr
4-6 wk
8 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
4 – 18 May
7 May
3-5 wk
8 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
3 May
4-6 wk
8 Jun
2 wk after
1 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
22 Apr
8-12 wk
27 Jun
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
16 Jun
3 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
5 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Safflower
Carthamus tinctorius
26 May
16 Jun
0 wk
19 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
17 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
8 Jun
4-6 wk
26 May
6 Jul
0 wk
5 Jun
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
9 – 23 Mar
24 Mar
10-12 wk
1 Jun
2 Jun
1 wk after
Sunflower
Helianthus annuus
11 – 18 May
15 Jun
3-4 wk
8 Jun
6 Jul
2 wk after
16 Jun
26 Jun
3 wk after
China aster
Callistephus chinensis
13 – 27 Apr
4 Jun
6-8 wk
8 Jun
16 Jul
2 wk after
1 Jul
6 Jul
5 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
25 Apr
6-8 wk
1 Jun
6 Jun
1 wk after
1 Jul
5 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
16 Jun
3 wk after
African marigold
Tagetes erecta
13 – 27 Apr
25 Apr
6-8 wk
8 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
0 wk
1 Jul
5 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
11 Apr
8-10 wk
26 May
6 Jun
0 wk
16 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
30 Mar – 27 Apr
16 Apr
6-10 wk
8 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
26 May
16 Jul
0 wk
19 May
6 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
11 May
8-10 wk
8 Jun
6 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
5 Jun
6 Jun
1 wk after