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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 3 of 4 years · 20 years of data
Frost-free season 95 days 26 May – 29 Aug
Probability that frost is over

25% = 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
15 Jun
5-7 wk
26 May
20 Jul
0 wk
30 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
27 Jun
4-6 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
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
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
4 – 11 May
27 May
3-4 wk
1 Jun
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
4 – 11 May
25 May
4-5 wk
8 Jun
22 Jun
2 wk after
30 Jun
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)
Fleece
3 – 31 Mar
21 Mar
8-12 wk
26 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
1 wk after
30 May
1 wk after
Maize
Zea mays
Greenhouse
28 Apr – 5 May
17 May
3-4 wk
26 May
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
21 Jun
3-4 wk
28 May
12 Jul
0 wk
16 Jun
2 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
5 Jul
0 wk
26 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
11 May
4-6 wk
11 Jun
2 wk after
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
20 Jun
5-7 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
11 – 18 May
1 Jun
3-4 wk
8 Jun
22 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
8 May
3-4 wk
28 May
29 May
0 wk
16 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
9 Jul
3-4 wk
26 May
30 Jul
0 wk
30 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
15 May
2-4 wk
26 May
29 May
0 wk
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
1 wk after
30 May
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
24 Jul
3-4 wk
26 May
14 Aug
0 wk
22 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
31 Mar – 14 Apr
26 Apr
6-8 wk
26 May
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
4 – 18 May
3 Jun
2-4 wk
1 Jun
17 Jun
1 wk after
30 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
24 Jun
3-4 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after

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
10 May
4-6 wk
8 Jun
2 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
30 May
12 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
20 May
8-12 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
1 Aug
0 wk
16 Jun
22 Jul
3 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
5 May
8-10 wk
28 May
30 Jun
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
10 May
8-10 wk
26 May
5 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
17 Mar
10-14 wk
28 May
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
17 May
3-4 wk
8 Jun
2 wk after
Cornflower
Centaurea cyanus
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Statice
Limonium sinuatum
30 Mar – 13 Apr
12 Apr
8-10 wk
8 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
26 Apr
6-8 wk
8 Jun
2 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 May – 2 Jun
16 May
4-8 wk
30 Jun
5 wk after
30 Jun
5 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
28 May
8-12 wk
27 Jun
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
6 May
6-8 wk
8 Jun
17 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
7 Apr
8-10 wk
28 May
2 Jun
0 wk
Love in a mist
Nigella damascena
26 May
30 Jun
0 wk
30 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
6 – 20 Apr
23 Apr
6-8 wk
1 Jun
4 Jun
1 wk after
24 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
7 Apr
8-12 wk
28 May
2 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
3 – 31 Mar
21 Mar
8-12 wk
26 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
9 Mar – 6 Apr
18 Apr
8-12 wk
1 Jun
13 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
6 – 20 Apr
2 May
6-8 wk
1 Jun
13 Jun
1 wk after
Corn poppy
Papaver rhoeas
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
10 May
8-12 wk
26 May
5 Jul
0 wk
11 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
30 Mar – 13 Apr
29 Apr
8-10 wk
8 Jun
24 Jun
2 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
31 May
5-8 wk
26 May
5 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
16 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
20 Apr – 4 May
11 May
4-6 wk
1 Jun
8 Jun
1 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Petunia
Petunia
16 Mar – 13 Apr
12 Apr
8-12 wk
8 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
21 Apr
6-8 wk
28 May
2 Jun
0 wk
14 Jul
7 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
10 May
4-6 wk
8 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
4 – 18 May
17 May
3-5 wk
8 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
16 May
4-6 wk
8 Jun
13 Jun
2 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
16 Mar – 13 Apr
18 May
8-12 wk
8 Jun
13 Jul
2 wk after
Bee balm
Monarda didyma
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
4 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
15 Jun
0 wk
30 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
8 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
7 Jun
4-6 wk
26 May
5 Jul
0 wk
16 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
9 – 23 Mar
23 Mar
10-12 wk
1 Jun
1 Jun
1 wk after
Sunflower
Helianthus annuus
11 – 18 May
25 May
3-4 wk
8 Jun
15 Jun
2 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
13 – 27 Apr
14 May
6-8 wk
8 Jun
25 Jun
2 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
6 May
6-8 wk
1 Jun
17 Jun
1 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
13 – 27 Apr
6 May
6-8 wk
8 Jun
17 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
4 May
6-8 wk
28 May
15 Jun
0 wk
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
10 Apr
8-10 wk
26 May
5 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
30 Mar – 27 Apr
26 Apr
6-10 wk
8 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
26 May
6 Jul
0 wk
30 May
26 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
11 Apr
8-10 wk
8 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after