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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 4 years · 20 years of data
Frost-free season 131 days 26 May – 4 Oct
Probability that frost is over

75% = 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
18 Jun
5-7 wk
26 May
23 Jul
0 wk
19 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
30 Jun
4-6 wk
26 May
28 Jul
0 wk
19 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
20 Apr
8-12 wk
1 Jun
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
13 Jun
5-7 wk
26 May
18 Jul
0 wk
14 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
11 – 18 May
14 Jun
3-4 wk
8 Jun
5 Jul
2 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
3 Jun
4-5 wk
27 Jun
1 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
27 Mar
8-12 wk
26 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 May
11 Jun
1 wk before
19 May
1 Jun
1 wk before
Maize
Zea mays
11 – 18 May
3-4 wk
8 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
7 Jul
3-4 wk
28 May
28 Jul
0 wk
5 Jun
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
8 Jul
0 wk
14 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
13 Jun
5-7 wk
26 May
18 Jul
0 wk
14 May
8 Jul
2 wk before
Potato
Solanum tuberosum
19 Apr – 3 May
18 May
4-6 wk
31 May
15 Jun
1 wk after
31 May
5 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
23 Jun
5-7 wk
26 May
28 Jul
0 wk
19 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
30 May – 6 Jun
19 Jun
3-4 wk
27 Jun
10 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
19 May
3-4 wk
28 May
9 Jun
0 wk
5 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
25 Jun
4-6 wk
26 May
23 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
12 Jul
3-4 wk
26 May
2 Aug
0 wk
19 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
25 Jun
4-6 wk
26 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 Apr
30 May
2-4 wk
14 May
13 Jun
2 wk before
14 May
3 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 May
11 Jun
1 wk before
19 May
1 Jun
1 wk before
Spinach
Spinacia oleracea
28 Apr – 5 May
27 Jul
3-4 wk
26 May
17 Aug
0 wk
8 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
22 Jun – 6 Jul
4-6 wk
3 Aug
10 wk after
Garden tomato
Solanum lycopersicum
13 – 27 Apr
18 Apr
6-8 wk
8 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
21 Jun
2-4 wk
8 Jun
5 Jul
2 wk after
1 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
25 Jun
4-6 wk
26 May
23 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
27 Jun
3-4 wk
26 May
18 Jul
0 wk
19 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
16 – 30 May
28 May
4-6 wk
27 Jun
5 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
23 May
8-10 wk
26 May
18 Jul
0 wk
16 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
19 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
6 Jun
6-8 wk
26 May
18 Jul
0 wk
19 May
8 Jul
1 wk before
Spearmint
Mentha spicata
3 – 31 Mar
23 May
8-12 wk
26 May
18 Jul
0 wk
16 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
26 May
17 Aug
0 wk
5 Jun
7 Aug
1 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
8 May
8-10 wk
28 May
3 Jul
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
13 May
8-10 wk
26 May
8 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
27 May
6-8 wk
26 May
8 Jul
0 wk
16 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
27 May
6-8 wk
26 May
8 Jul
0 wk
19 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
9 Apr
10-14 wk
28 May
18 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
30 May – 6 Jun
4 Jun
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
26 May
18 Jul
0 wk
19 May
8 Jul
1 wk before
Statice
Limonium sinuatum
30 Mar – 13 Apr
6 May
8-10 wk
8 Jun
1 Jul
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
20 May
6-8 wk
8 Jun
1 Jul
2 wk after
3 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
25 May
6-8 wk
6 Jun
6 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
21 Apr – 19 May
8 Jun
4-8 wk
16 Jun
6 Jul
3 wk after
16 Jun
26 Jun
3 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
27 Jun
8-12 wk
27 Jun
22 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
27 Apr – 11 May
10 May
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
23 Apr
8-10 wk
28 May
18 Jun
0 wk
Love in a mist
Nigella damascena
26 May
3 Jul
0 wk
19 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
10 May
6-8 wk
8 Jun
21 Jun
2 wk after
3 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
23 Apr
8-12 wk
28 May
18 Jun
0 wk
Cardoon
Cynara cardunculus
16 Mar – 13 Apr
24 Mar
8-12 wk
8 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
4 Apr – 2 May
20 Apr
8-12 wk
27 Jun
5 wk after
Globe amaranth
Gomphrena globosa
2 – 16 May
4 May
6-8 wk
27 Jun
5 wk after
Corn poppy
Papaver rhoeas
26 May
18 Jul
0 wk
19 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
3 – 31 Mar
13 May
8-12 wk
26 May
8 Jul
0 wk
31 May
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
16 May
8-10 wk
27 Jun
11 Jul
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
3 Jun
5-8 wk
26 May
8 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
6 Jun
6-8 wk
26 May
18 Jul
0 wk
5 Jun
8 Jul
1 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
7 May
6-8 wk
26 May
18 Jun
0 wk
5 Jun
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
25 May
4-6 wk
8 Jun
22 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
23 May
8-10 wk
26 May
18 Jul
0 wk
31 May
8 Jul
1 wk after
Petunia
Petunia
16 Mar – 13 Apr
6 May
8-12 wk
8 Jun
1 Jul
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
7 May
6-8 wk
28 May
18 Jun
0 wk
1 Jul
5 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
9 Jun
4-6 wk
8 Jun
7 Jul
2 wk after
Common morning glory
Ipomoea purpurea
23 May – 6 Jun
4 Jun
3-5 wk
27 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
8 Jun
4-6 wk
8 Jun
6 Jul
2 wk after
1 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
1 Jun
8-12 wk
27 Jun
27 Jul
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
23 Apr
8-12 wk
26 May
18 Jun
0 wk
16 Jun
3 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
7 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Safflower
Carthamus tinctorius
26 May
18 Jun
0 wk
19 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
27 May
6-8 wk
26 May
8 Jul
0 wk
17 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
10 Jun
4-6 wk
26 May
8 Jul
0 wk
5 Jun
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Mar
7 Apr
10-12 wk
8 Jun
16 Jun
2 wk after
Sunflower
Helianthus annuus
11 – 18 May
17 Jun
3-4 wk
8 Jun
8 Jul
2 wk after
16 Jun
28 Jun
3 wk after
China aster
Callistephus chinensis
13 – 27 Apr
6 Jun
6-8 wk
8 Jun
18 Jul
2 wk after
1 Jul
8 Jul
5 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
30 May
6-8 wk
1 Jun
11 Jul
1 wk after
1 Jul
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
23 Apr
8-12 wk
26 May
18 Jun
0 wk
16 Jun
3 wk after
African marigold
Tagetes erecta
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
27 May
6-8 wk
28 May
8 Jul
0 wk
1 Jul
5 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
13 Apr
8-10 wk
26 May
8 Jun
0 wk
16 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
18 Apr – 16 May
14 May
6-10 wk
27 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
26 May
18 Jul
0 wk
19 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
6 May
8-10 wk
8 Jun
1 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
7 May
6-8 wk
26 May
18 Jun
0 wk
5 Jun
8 Jun
1 wk after