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Method
Rel. frost
Last spring frost (0°C) 31 May Frost 1 of 10 years · 20 years of data
Frost-free season 125 days 31 May – 3 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)
12 – 26 Apr
16 Jun
5-7 wk
31 May
21 Jul
0 wk
4 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
19 Apr – 3 May
28 Jun
4-6 wk
31 May
26 Jul
0 wk
4 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
12 – 26 Apr
11 Jun
5-7 wk
31 May
16 Jul
0 wk
31 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
9 – 16 May
3-4 wk
6 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
28 May – 4 Jun
8 Jun
4-5 wk
2 Jul
6 Jul
5 wk after
19 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Mar – 5 Apr
1 Apr
8-12 wk
31 May
0 wk
21 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
4 Jun
16 Jun
1 wk after
4 Jun
6 Jun
1 wk after
Maize
Zea mays
Season too short
3 – 10 May
3-4 wk
31 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 May
5 Jul
3-4 wk
2 Jun
26 Jul
0 wk
21 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
31 May
6 Jul
0 wk
31 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
12 – 26 Apr
11 Jun
5-7 wk
31 May
16 Jul
0 wk
31 May
6 Jul
0 wk
Potato
Solanum tuberosum
5 – 19 May
3 Jun
4-6 wk
16 Jun
1 Jul
2 wk after
16 Jun
21 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
12 – 26 Apr
21 Jun
5-7 wk
31 May
26 Jul
0 wk
4 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
9 – 16 May
4 Jun
3-4 wk
6 Jun
25 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 May
9 Jun
3-4 wk
2 Jun
30 Jun
0 wk
21 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Apr – 3 May
23 Jun
4-6 wk
31 May
21 Jul
0 wk
Lettuce
Lactuca sativa
3 – 10 May
10 Jul
3-4 wk
31 May
31 Jul
0 wk
4 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
19 Apr – 3 May
23 Jun
4-6 wk
31 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 May
2 Jun
2-4 wk
31 May
16 Jun
0 wk
31 May
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
4 Jun
16 Jun
1 wk after
4 Jun
6 Jun
1 wk after
Spinach
Spinacia oleracea
3 – 10 May
25 Jul
3-4 wk
31 May
15 Aug
0 wk
27 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
2 – 16 Jul
4-6 wk
13 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
5 – 19 Apr
6-8 wk
31 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
3 – 17 May
6 Jun
2-4 wk
31 May
20 Jun
0 wk
21 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Apr – 3 May
23 Jun
4-6 wk
31 May
21 Jul
0 wk
Garden pea
Pisum sativum
3 – 10 May
25 Jun
3-4 wk
31 May
16 Jul
0 wk
4 Jun
6 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
Greenhouse
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
1 wk after
Lemon balm
Melissa officinalis
22 Mar – 5 Apr
21 May
8-10 wk
31 May
16 Jul
0 wk
5 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
4 Jun
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
5 – 19 Apr
4 Jun
6-8 wk
31 May
16 Jul
0 wk
4 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
8 Mar – 5 Apr
21 May
8-12 wk
31 May
16 Jul
0 wk
5 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
31 May
15 Aug
0 wk
21 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
24 Mar – 7 Apr
6 May
8-10 wk
2 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
22 Mar – 5 Apr
11 May
8-10 wk
31 May
6 Jul
0 wk
Oregano
Origanum vulgare
5 – 19 Apr
25 May
6-8 wk
31 May
6 Jul
0 wk
5 Jul
5 wk after
Parsley
Petroselinum crispum
5 – 19 Apr
25 May
6-8 wk
31 May
6 Jul
0 wk
4 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
24 Feb – 24 Mar
7 Apr
10-14 wk
2 Jun
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
Greenhouse
9 – 16 May
20 May
3-4 wk
6 Jun
10 Jun
1 wk after
Cornflower
Centaurea cyanus
31 May
16 Jul
0 wk
4 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
28 Mar – 11 Apr
12 Apr
8-10 wk
6 Jun
7 Jun
1 wk after
Sweet William
Dianthus barbatus
5 – 19 Apr
6-8 wk
31 May
0 wk
16 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
11 – 25 Apr
26 Apr
6-8 wk
6 Jun
7 Jun
1 wk after
29 Jul
8 wk after
Pinnate dahlia
Dahlia × pinnata
16 – 30 Apr
19 Apr
6-8 wk
11 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
26 Apr – 24 May
13 May
4-8 wk
21 Jun
3 wk after
21 Jun
3 wk after
Foxglove
Digitalis purpurea
22 Mar – 5 Apr
8-10 wk
31 May
0 wk
21 Jun
3 wk after
Busy lizzie
Impatiens walleriana
9 Apr – 7 May
17 Apr
8-12 wk
2 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
11 – 25 Apr
6 May
6-8 wk
6 Jun
17 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
2 – 16 May
4-6 wk
13 Jun
2 wk after
Chinese lantern
Physalis alkekengi
24 Mar – 7 Apr
21 Apr
8-10 wk
2 Jun
16 Jun
0 wk
Love in a mist
Nigella damascena
31 May
1 Jul
0 wk
4 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
11 – 25 Apr
16 Apr
6-8 wk
6 Jun
1 wk after
29 Jul
8 wk after
Purple-top vervain
Verbena bonariensis
10 Mar – 7 Apr
21 Apr
8-12 wk
2 Jun
16 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
14 Mar – 11 Apr
22 Mar
8-12 wk
6 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
14 Mar – 11 Apr
5 Apr
8-12 wk
6 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
11 – 25 Apr
19 Apr
6-8 wk
6 Jun
1 wk after
Corn poppy
Papaver rhoeas
31 May
16 Jul
0 wk
4 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
8 Mar – 5 Apr
11 May
8-12 wk
31 May
6 Jul
0 wk
16 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
4 – 18 Apr
22 Apr
8-10 wk
13 Jun
17 Jun
2 wk after
Sweet pea
Lathyrus odoratus
5 – 26 Apr
1 Jun
5-8 wk
31 May
6 Jul
0 wk
Stock
Matthiola incana
5 – 19 Apr
4 Jun
6-8 wk
31 May
16 Jul
0 wk
21 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
5 – 19 Apr
5 May
6-8 wk
31 May
16 Jun
0 wk
21 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
25 Apr – 9 May
28 Apr
4-6 wk
6 Jun
1 wk after
Garden pansy
Viola × wittrockiana
22 Mar – 5 Apr
21 May
8-10 wk
31 May
16 Jul
0 wk
16 Jun
6 Jul
2 wk after
Petunia
Petunia
Fleece
14 Mar – 11 Apr
12 Apr
8-12 wk
6 Jun
7 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
7 – 21 Apr
5 May
6-8 wk
2 Jun
16 Jun
0 wk
19 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
2 – 16 May
20 May
3-5 wk
6 Jun
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
25 Apr – 9 May
13 May
4-6 wk
6 Jun
10 Jun
1 wk after
5 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
21 Mar – 18 Apr
5 May
8-12 wk
13 Jun
30 Jun
2 wk after
Bee balm
Monarda didyma
8 Mar – 5 Apr
21 Apr
8-12 wk
31 May
16 Jun
0 wk
5 Jul
5 wk after
Yarrow
Achillea millefolium
5 – 19 Apr
5 Apr
6-8 wk
31 May
0 wk
21 Jun
3 wk after
Safflower
Carthamus tinctorius
31 May
16 Jun
0 wk
4 Jun
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
5 – 19 Apr
25 May
6-8 wk
31 May
6 Jul
0 wk
13 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
19 Apr – 3 May
8 Jun
4-6 wk
31 May
6 Jul
0 wk
21 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
14 – 28 Mar
10-12 wk
6 Jun
1 wk after
Sunflower
Helianthus annuus
16 – 23 May
15 Jun
3-4 wk
13 Jun
6 Jul
2 wk after
5 Jul
5 wk after
China aster
Callistephus chinensis
18 Apr – 2 May
4 Jun
6-8 wk
13 Jun
16 Jul
2 wk after
19 Jul
7 wk after
Annual phlox
Phlox drummondii
11 – 25 Apr
16 Apr
6-8 wk
6 Jun
1 wk after
19 Jul
7 wk after
Hollyhock
Alcea rosea
5 – 19 Apr
6-8 wk
31 May
0 wk
21 Jun
3 wk after
Alpine delphinium
Delphinium elatum
8 Mar – 5 Apr
21 Apr
8-12 wk
31 May
16 Jun
0 wk
5 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
11 – 25 Apr
6 May
6-8 wk
6 Jun
17 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Apr
25 May
6-8 wk
2 Jun
6 Jul
0 wk
19 Jul
7 wk after
Wood sage
Salvia nemorosa
22 Mar – 5 Apr
11 Apr
8-10 wk
31 May
6 Jun
0 wk
5 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
28 Mar – 25 Apr
29 Apr
6-10 wk
6 Jun
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
31 May
16 Jul
0 wk
4 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
4 – 18 Apr
11 May
8-10 wk
13 Jun
6 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
5 – 19 Apr
5 May
6-8 wk
31 May
16 Jun
0 wk
21 Jun
3 wk after