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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 135 days 1 Jun – 14 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)
13 – 27 Apr
12 Jun
5-7 wk
1 Jun
17 Jul
0 wk
2 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
24 Jun
4-6 wk
1 Jun
22 Jul
0 wk
2 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
7 Jun
5-7 wk
1 Jun
12 Jul
0 wk
1 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
20 May
3-4 wk
7 Jun
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
29 May – 5 Jun
4 Jun
4-5 wk
3 Jul
5 wk after
14 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
9 Mar – 6 Apr
28 Mar
8-12 wk
1 Jun
0 wk
14 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
12 Jun
0 wk
2 Jun
2 Jun
0 wk
Maize
Zea mays
Fleece
10 – 17 May
3-4 wk
7 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
1 Jul
3-4 wk
3 Jun
22 Jul
0 wk
14 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
2 Jul
0 wk
1 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
7 Jun
5-7 wk
1 Jun
12 Jul
0 wk
1 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
4 Jun
4-6 wk
11 Jun
2 Jul
1 wk after
11 Jun
22 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
17 Jun
5-7 wk
1 Jun
22 Jul
0 wk
2 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
25 May
3-4 wk
14 Jun
15 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
16 Jun
3-4 wk
3 Jun
7 Jul
0 wk
14 Jun
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
6 Jul
3-4 wk
1 Jun
27 Jul
0 wk
2 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
29 May
2-4 wk
1 Jun
12 Jun
0 wk
1 Jun
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
12 Jun
0 wk
2 Jun
2 Jun
0 wk
Spinach
Spinacia oleracea
4 – 11 May
21 Jul
3-4 wk
1 Jun
11 Aug
0 wk
29 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
12 – 26 Apr
6-8 wk
7 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
27 May
2-4 wk
7 Jun
10 Jun
1 wk after
26 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
21 Jun
3-4 wk
1 Jun
12 Jul
0 wk
2 Jun
2 Jul
0 wk

Herbs

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