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Method
Rel. frost
Last spring frost (0°C) 25 May Frost 1 of 4 years · 20 years of data
Frost-free season 131 days 25 May – 3 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)
6 – 20 Apr
8 Jun
5-7 wk
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
26 May
8 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
8 Mar – 5 Apr
8-12 wk
31 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
3 Jun
5-7 wk
25 May
8 Jul
0 wk
25 May
28 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
3 – 10 May
21 May
3-4 wk
31 May
11 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 May
31 May
4-5 wk
26 Jun
28 Jun
5 wk after
7 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
2 – 30 Mar
21 Mar
8-12 wk
25 May
0 wk
31 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
28 May
0 wk
26 May
0 wk
Maize
Zea mays
Greenhouse
27 Apr – 4 May
11 May
3-4 wk
25 May
1 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
27 Jun
3-4 wk
27 May
18 Jul
0 wk
7 Jun
8 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
28 Jun
0 wk
25 May
18 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
3 Jun
5-7 wk
25 May
8 Jul
0 wk
25 May
28 Jun
0 wk
Potato
Solanum tuberosum
Fleece
14 – 28 Apr
20 May
4-6 wk
26 May
17 Jun
0 wk
26 May
7 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
13 Jun
5-7 wk
25 May
18 Jul
0 wk
26 May
8 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
3 – 10 May
28 Jun
3-4 wk
31 May
19 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
27 Apr – 4 May
25 May
3-4 wk
25 May
15 Jun
0 wk
31 May
5 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
15 Jun
4-6 wk
25 May
13 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
2 Jul
3-4 wk
25 May
23 Jul
0 wk
26 May
13 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
15 Jun
4-6 wk
25 May
13 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
16 May
2-4 wk
25 May
30 May
0 wk
25 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
28 May
0 wk
26 May
0 wk
Spinach
Spinacia oleracea
27 Apr – 4 May
17 Jul
3-4 wk
25 May
7 Aug
0 wk
22 May
28 Jul
0 wk
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
30 Mar – 13 Apr
20 Apr
6-8 wk
25 May
1 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
3 – 17 May
28 May
2-4 wk
31 May
11 Jun
1 wk after
19 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
15 Jun
4-6 wk
25 May
13 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
17 Jun
3-4 wk
25 May
8 Jul
0 wk
26 May
28 Jun
0 wk

Herbs

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