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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 115 days 4 Jun – 27 Sep
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)
16 – 30 Apr
11 Jun
5-7 wk
4 Jun
16 Jul
0 wk
5 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
23 Jun
4-6 wk
4 Jun
21 Jul
0 wk
5 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
6 Jun
5-7 wk
4 Jun
11 Jul
0 wk
4 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
13 – 20 May
3-4 wk
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
1 – 8 Jun
1 Jun
4-5 wk
6 Jul
5 wk after
17 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
12 Mar – 9 Apr
27 Mar
8-12 wk
4 Jun
0 wk
10 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 Jun
0 wk
5 Jun
0 wk
Maize
Zea mays
Season too short
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
30 Jun
3-4 wk
6 Jun
21 Jul
0 wk
17 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
1 Jul
0 wk
4 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
6 Jun
5-7 wk
4 Jun
11 Jul
0 wk
4 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
3 – 17 May
20 May
4-6 wk
14 Jun
17 Jun
1 wk after
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
16 Jun
5-7 wk
4 Jun
21 Jul
0 wk
5 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
28 May
3-4 wk
10 Jun
18 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
1 Jun
3-4 wk
6 Jun
22 Jun
0 wk
17 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
18 Jun
4-6 wk
4 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
5 Jul
3-4 wk
4 Jun
26 Jul
0 wk
5 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
18 Jun
4-6 wk
4 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
26 May
2-4 wk
4 Jun
9 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 Jun
0 wk
5 Jun
0 wk
Spinach
Spinacia oleracea
7 – 14 May
20 Jul
3-4 wk
4 Jun
10 Aug
0 wk
1 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
13 – 27 May
2-4 wk
10 Jun
1 wk after
29 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
18 Jun
4-6 wk
4 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
20 Jun
3-4 wk
4 Jun
11 Jul
0 wk
5 Jun
1 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
Greenhouse
29 Apr – 13 May
6 May
4-6 wk
10 Jun
1 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
16 May
8-10 wk
4 Jun
11 Jul
0 wk
29 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
5 Jun
21 Jul
0 wk
Wild chives
Allium schoenoprasum
9 – 23 Apr
30 May
6-8 wk
4 Jun
11 Jul
0 wk
5 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
12 Mar – 9 Apr
16 May
8-12 wk
4 Jun
11 Jul
0 wk
29 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
4 Jun
10 Aug
0 wk
17 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
1 May
8-10 wk
6 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
6 May
8-10 wk
4 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
20 May
6-8 wk
4 Jun
1 Jul
0 wk
29 Jun
4 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
20 May
6-8 wk
4 Jun
1 Jul
0 wk
5 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
28 Feb – 28 Mar
2 Apr
10-14 wk
6 Jun
11 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
13 – 20 May
13 May
3-4 wk
10 Jun
1 wk after
Cornflower
Centaurea cyanus
4 Jun
11 Jul
0 wk
5 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
1 – 15 Apr
8-10 wk
10 Jun
1 wk after
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
14 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
24 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
11 – 25 Apr
26 Apr
6-8 wk
6 Jun
7 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
15 Apr – 13 May
24 May
4-8 wk
10 Jun
21 Jun
1 wk after
10 Jun
11 Jun
1 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
17 Jun
2 wk after
Busy lizzie
Impatiens walleriana
13 Apr – 11 May
6 May
8-12 wk
6 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Apr
24 Apr
6-8 wk
10 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
28 Mar – 11 Apr
16 Apr
8-10 wk
6 Jun
11 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
26 Jun
0 wk
5 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
9 – 23 Apr
20 Apr
6-8 wk
4 Jun
0 wk
6 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
16 Apr
8-12 wk
6 Jun
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
18 Mar – 15 Apr
29 Mar
8-12 wk
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
4 Jun
11 Jul
0 wk
5 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
6 May
8-12 wk
4 Jun
1 Jul
0 wk
14 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
8 – 22 Apr
10 Apr
8-10 wk
17 Jun
2 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
27 May
5-8 wk
4 Jun
1 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
30 May
6-8 wk
4 Jun
11 Jul
0 wk
17 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
30 Apr
6-8 wk
4 Jun
11 Jun
0 wk
17 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
16 May
8-10 wk
4 Jun
11 Jul
0 wk
14 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
18 Mar – 15 Apr
31 Mar
8-12 wk
10 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
30 Apr
6-8 wk
6 Jun
11 Jun
0 wk
17 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
29 Apr – 13 May
6 May
4-6 wk
10 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
6 – 20 May
13 May
3-5 wk
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
29 Apr – 13 May
10 May
4-6 wk
10 Jun
1 wk after
29 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
25 Mar – 22 Apr
28 Apr
8-12 wk
17 Jun
23 Jun
2 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
16 Apr
8-12 wk
4 Jun
11 Jun
0 wk
29 Jun
4 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Safflower
Carthamus tinctorius
4 Jun
11 Jun
0 wk
5 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
20 May
6-8 wk
4 Jun
1 Jul
0 wk
19 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
3 Jun
4-6 wk
4 Jun
1 Jul
0 wk
17 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
18 Mar – 1 Apr
10-12 wk
10 Jun
1 wk after
Sunflower
Helianthus annuus
20 – 27 May
10 Jun
3-4 wk
17 Jun
1 Jul
2 wk after
29 Jun
4 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
30 May
6-8 wk
17 Jun
11 Jul
2 wk after
17 Jul
6 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
17 Jul
6 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
16 Apr
8-12 wk
4 Jun
11 Jun
0 wk
29 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Apr
24 Apr
6-8 wk
10 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
20 May
6-8 wk
6 Jun
1 Jul
0 wk
17 Jul
6 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
6 Apr
8-10 wk
4 Jun
0 wk
29 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
1 – 29 Apr
22 Apr
6-10 wk
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
11 Jul
0 wk
5 Jun
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
4 May
8-10 wk
17 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
30 Apr
6-8 wk
4 Jun
11 Jun
0 wk
17 Jun
2 wk after