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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 122 days 2 Jun – 2 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
15 Jun
5-7 wk
2 Jun
20 Jul
0 wk
6 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
27 Jun
4-6 wk
2 Jun
25 Jul
0 wk
6 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
14 – 28 Apr
10 Jun
5-7 wk
2 Jun
15 Jul
0 wk
2 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
20 – 27 May
3-4 wk
17 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
10 – 17 Jun
4-5 wk
15 Jul
6 wk after
21 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
22 – 29 Jun
3-4 wk
20 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Mar – 7 Apr
31 Mar
8-12 wk
2 Jun
0 wk
23 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
6 Jun
15 Jun
1 wk after
6 Jun
1 wk after
Maize
Zea mays
Season too short
6 – 13 May
3-4 wk
3 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 May
4 Jul
3-4 wk
10 Jun
25 Jul
1 wk after
23 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Jun
5 Jul
0 wk
2 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
14 – 28 Apr
10 Jun
5-7 wk
2 Jun
15 Jul
0 wk
2 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
7 – 21 May
7 Jun
4-6 wk
18 Jun
5 Jul
2 wk after
18 Jun
25 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
14 – 28 Apr
20 Jun
5-7 wk
2 Jun
25 Jul
0 wk
6 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
20 – 27 May
31 May
3-4 wk
17 Jun
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 May
17 Jun
3-4 wk
10 Jun
8 Jul
1 wk after
23 Jun
28 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
22 Jun
4-6 wk
2 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 May
9 Jul
3-4 wk
2 Jun
30 Jul
0 wk
6 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Apr – 5 May
22 Jun
4-6 wk
2 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
5 – 19 May
1 Jun
2-4 wk
2 Jun
15 Jun
0 wk
2 Jun
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 Jun
15 Jun
1 wk after
6 Jun
1 wk after
Spinach
Spinacia oleracea
5 – 12 May
24 Jul
3-4 wk
2 Jun
14 Aug
0 wk
29 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
4 – 18 Jul
4-6 wk
15 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
8 – 22 Apr
6-8 wk
3 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
6 – 20 May
2 Jun
2-4 wk
3 Jun
16 Jun
0 wk
23 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
22 Jun
4-6 wk
2 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 May
24 Jun
3-4 wk
2 Jun
15 Jul
0 wk
6 Jun
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
Greenhouse
6 – 20 May
9 May
4-6 wk
17 Jun
2 wk after
Lemon balm
Melissa officinalis
24 Mar – 7 Apr
20 May
8-10 wk
2 Jun
15 Jul
0 wk
7 Jul
5 wk after
Dill
Anethum graveolens
6 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
7 – 21 Apr
3 Jun
6-8 wk
2 Jun
15 Jul
0 wk
6 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
10 Mar – 7 Apr
20 May
8-12 wk
2 Jun
15 Jul
0 wk
7 Jul
5 wk after
Coriander
Coriandrum sativum
2 Jun
14 Aug
0 wk
23 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
1 – 15 Apr
5 May
8-10 wk
10 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
24 Mar – 7 Apr
10 May
8-10 wk
2 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Apr
24 May
6-8 wk
2 Jun
5 Jul
0 wk
7 Jul
5 wk after
Parsley
Petroselinum crispum
7 – 21 Apr
24 May
6-8 wk
2 Jun
5 Jul
0 wk
6 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
4 Mar – 1 Apr
6 Apr
10-14 wk
10 Jun
15 Jun
1 wk after

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