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Method
Rel. frost
Last spring frost (0°C) 2 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 135 days 2 Jun – 15 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)
14 – 28 Apr
17 Jun
5-7 wk
2 Jun
22 Jul
0 wk
26 May
12 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
29 Jun
4-6 wk
2 Jun
27 Jul
0 wk
26 May
17 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
16 Mar – 13 Apr
8-12 wk
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Apr
12 Jun
5-7 wk
2 Jun
17 Jul
0 wk
21 May
7 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
11 – 18 May
26 May
3-4 wk
8 Jun
16 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
30 May – 6 Jun
9 Jun
4-5 wk
4 Jul
7 Jul
5 wk after
8 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
13 – 20 Jun
3-4 wk
11 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Mar – 7 Apr
2 Apr
8-12 wk
2 Jun
0 wk
12 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
17 Jun
1 wk before
26 May
7 Jun
1 wk before
Maize
Zea mays
Greenhouse
5 – 12 May
16 May
3-4 wk
2 Jun
6 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
6 Jul
3-4 wk
4 Jun
27 Jul
0 wk
12 Jun
17 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Jun
7 Jul
0 wk
21 May
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Apr
12 Jun
5-7 wk
2 Jun
17 Jul
0 wk
21 May
7 Jul
2 wk before
Potato
Solanum tuberosum
26 Apr – 10 May
9 Jun
4-6 wk
7 Jun
7 Jul
1 wk after
7 Jun
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Apr
22 Jun
5-7 wk
2 Jun
27 Jul
0 wk
26 May
17 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
18 – 25 May
31 May
3-4 wk
15 Jun
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
30 Jun
3-4 wk
4 Jun
21 Jul
0 wk
12 Jun
11 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
24 Jun
4-6 wk
2 Jun
22 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 May
11 Jul
3-4 wk
2 Jun
1 Aug
0 wk
26 May
22 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Apr – 5 May
24 Jun
4-6 wk
2 Jun
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Apr – 7 May
3 Jun
2-4 wk
21 May
17 Jun
2 wk before
21 May
7 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
17 Jun
1 wk before
26 May
7 Jun
1 wk before
Spinach
Spinacia oleracea
5 – 12 May
26 Jul
3-4 wk
2 Jun
16 Aug
0 wk
15 May
6 Aug
3 wk before
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
7 – 21 Apr
25 Apr
6-8 wk
2 Jun
6 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
11 – 25 May
2 Jun
2-4 wk
8 Jun
16 Jun
1 wk after
23 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
24 Jun
4-6 wk
2 Jun
22 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 May
26 Jun
3-4 wk
2 Jun
17 Jul
0 wk
26 May
7 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
Fleece
4 – 18 May
9 May
4-6 wk
15 Jun
2 wk after
Lemon balm
Melissa officinalis
24 Mar – 7 Apr
22 May
8-10 wk
2 Jun
17 Jul
0 wk
23 Jun
7 Jul
3 wk after
Dill
Anethum graveolens
26 May
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
7 – 21 Apr
5 Jun
6-8 wk
2 Jun
17 Jul
0 wk
26 May
7 Jul
1 wk before
Spearmint
Mentha spicata
10 Mar – 7 Apr
22 May
8-12 wk
2 Jun
17 Jul
0 wk
23 Jun
7 Jul
3 wk after
Coriander
Coriandrum sativum
2 Jun
16 Aug
0 wk
12 Jun
6 Aug
1 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
7 May
8-10 wk
4 Jun
2 Jul
0 wk
Common thyme
Thymus vulgaris
24 Mar – 7 Apr
12 May
8-10 wk
2 Jun
7 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Apr
26 May
6-8 wk
2 Jun
7 Jul
0 wk
23 Jun
27 Jun
3 wk after
Parsley
Petroselinum crispum
7 – 21 Apr
26 May
6-8 wk
2 Jun
7 Jul
0 wk
26 May
27 Jun
1 wk before
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
8 Apr
10-14 wk
4 Jun
17 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
18 – 25 May
3-4 wk
15 Jun
2 wk after
Cornflower
Centaurea cyanus
2 Jun
17 Jul
0 wk
26 May
7 Jul
1 wk before
Statice
Limonium sinuatum
6 – 20 Apr
13 Apr
8-10 wk
15 Jun
2 wk after
Sweet William
Dianthus barbatus
7 – 21 Apr
6-8 wk
2 Jun
0 wk
7 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
20 Apr – 4 May
27 Apr
6-8 wk
15 Jun
2 wk after
10 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
29 Apr
6-8 wk
13 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Apr – 26 May
13 May
4-8 wk
23 Jun
3 wk after
23 Jun
3 wk after
Foxglove
Digitalis purpurea
24 Mar – 7 Apr
8-10 wk
2 Jun
0 wk
12 Jun
1 wk after
Busy lizzie
Impatiens walleriana
11 Apr – 9 May
27 May
8-12 wk
4 Jul
22 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
20 Apr – 4 May
7 May
6-8 wk
15 Jun
18 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
4 – 18 May
4-6 wk
15 Jun
2 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
22 Apr
8-10 wk
4 Jun
17 Jun
0 wk
Love in a mist
Nigella damascena
2 Jun
2 Jul
0 wk
26 May
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
20 Apr – 4 May
6-8 wk
15 Jun
2 wk after
10 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
22 Apr
8-12 wk
4 Jun
17 Jun
0 wk
Cardoon
Cynara cardunculus
23 Mar – 20 Apr
23 Mar
8-12 wk
15 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
23 Mar – 20 Apr
1 Apr
8-12 wk
15 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
20 Apr – 4 May
6-8 wk
15 Jun
2 wk after
Corn poppy
Papaver rhoeas
2 Jun
17 Jul
0 wk
26 May
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
10 Mar – 7 Apr
12 May
8-12 wk
2 Jun
7 Jul
0 wk
7 Jun
27 Jun
1 wk after
Flossflower
Ageratum houstonianum
25 Apr – 9 May
8-10 wk
4 Jul
5 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Apr
2 Jun
5-8 wk
2 Jun
7 Jul
0 wk
Stock
Matthiola incana
7 – 21 Apr
5 Jun
6-8 wk
2 Jun
17 Jul
0 wk
12 Jun
7 Jul
1 wk after
Wormwood
Artemisia absinthium
7 – 21 Apr
6 May
6-8 wk
2 Jun
17 Jun
0 wk
12 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
4 – 18 May
4-6 wk
15 Jun
2 wk after
Garden pansy
Viola × wittrockiana
24 Mar – 7 Apr
22 May
8-10 wk
2 Jun
17 Jul
0 wk
7 Jun
7 Jul
1 wk after
Petunia
Petunia
23 Mar – 20 Apr
13 Apr
8-12 wk
15 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
6 May
6-8 wk
4 Jun
17 Jun
0 wk
8 Jul
5 wk after
Common zinnia
Zinnia elegans
4 – 18 May
9 May
4-6 wk
15 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
11 – 25 May
16 May
3-5 wk
15 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
4 – 18 May
13 May
4-6 wk
15 Jun
2 wk after
8 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
11 Apr – 9 May
1 May
8-12 wk
4 Jul
5 wk after
Bee balm
Monarda didyma
10 Mar – 7 Apr
22 Apr
8-12 wk
2 Jun
17 Jun
0 wk
23 Jun
3 wk after
Yarrow
Achillea millefolium
7 – 21 Apr
6-8 wk
2 Jun
0 wk
12 Jun
1 wk after
Safflower
Carthamus tinctorius
2 Jun
17 Jun
0 wk
26 May
7 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Apr
26 May
6-8 wk
2 Jun
7 Jul
0 wk
24 Apr
27 Jun
6 wk before
Bishop's flower
Ammi majus
21 Apr – 5 May
9 Jun
4-6 wk
2 Jun
7 Jul
0 wk
12 Jun
27 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
23 Mar – 6 Apr
10-12 wk
15 Jun
2 wk after
Sunflower
Helianthus annuus
18 – 25 May
16 Jun
3-4 wk
15 Jun
7 Jul
2 wk after
23 Jun
27 Jun
3 wk after
China aster
Callistephus chinensis
20 Apr – 4 May
5 Jun
6-8 wk
15 Jun
17 Jul
2 wk after
8 Jul
5 wk after
Annual phlox
Phlox drummondii
13 – 27 Apr
7 May
6-8 wk
8 Jun
18 Jun
1 wk after
8 Jul
5 wk after
Hollyhock
Alcea rosea
7 – 21 Apr
6-8 wk
2 Jun
0 wk
12 Jun
1 wk after
Alpine delphinium
Delphinium elatum
10 Mar – 7 Apr
22 Apr
8-12 wk
2 Jun
17 Jun
0 wk
23 Jun
3 wk after
African marigold
Tagetes erecta
20 Apr – 4 May
7 May
6-8 wk
15 Jun
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
26 May
6-8 wk
4 Jun
7 Jul
0 wk
8 Jul
5 wk after
Wood sage
Salvia nemorosa
24 Mar – 7 Apr
12 Apr
8-10 wk
2 Jun
7 Jun
0 wk
23 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
6 Apr – 4 May
25 Apr
6-10 wk
15 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
2 Jun
17 Jul
0 wk
26 May
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
6 – 20 Apr
12 May
8-10 wk
15 Jun
7 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Apr
6 May
6-8 wk
2 Jun
17 Jun
0 wk
12 Jun
1 wk after