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Method
Rel. frost
Last spring frost (0°C) 18 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 89 days 18 Jun – 15 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)
30 Apr – 14 May
15 Jun
5-7 wk
18 Jun
20 Jul
0 wk
22 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
7 – 21 May
27 Jun
4-6 wk
18 Jun
25 Jul
0 wk
22 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
1 – 29 Apr
8-12 wk
24 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Apr – 14 May
10 Jun
5-7 wk
18 Jun
15 Jul
0 wk
18 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
27 May – 3 Jun
7 Jun
4-5 wk
1 Jul
5 Jul
2 wk after
23 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
29 Jun – 6 Jul
3-4 wk
27 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
26 Mar – 23 Apr
31 Mar
8-12 wk
18 Jun
0 wk
18 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
22 Jun
1 wk after
22 Jun
1 wk after
Maize
Zea mays
Season too short
21 – 28 May
3-4 wk
18 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 May
4 Jul
3-4 wk
20 Jun
25 Jul
0 wk
9 Jul
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 Jun
5 Jul
0 wk
18 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Apr – 14 May
10 Jun
5-7 wk
18 Jun
15 Jul
0 wk
18 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
23 May – 6 Jun
24 May
4-6 wk
4 Jul
2 wk after
4 Jul
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Apr – 14 May
20 Jun
5-7 wk
18 Jun
25 Jul
0 wk
22 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 May
1 Jun
3-4 wk
20 Jun
22 Jun
0 wk
9 Jul
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
7 – 21 May
22 Jun
4-6 wk
18 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
21 – 28 May
9 Jul
3-4 wk
18 Jun
30 Jul
0 wk
22 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 May
22 Jun
4-6 wk
18 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
21 May – 4 Jun
1 Jun
2-4 wk
18 Jun
0 wk
18 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 Jun
1 wk after
22 Jun
1 wk after
Spinach
Spinacia oleracea
21 – 28 May
24 Jul
3-4 wk
18 Jun
14 Aug
0 wk
14 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
20 Jul – 3 Aug
4-6 wk
31 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
21 May – 4 Jun
2-4 wk
18 Jun
0 wk
9 Jul
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
7 – 21 May
22 Jun
4-6 wk
18 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
21 – 28 May
24 Jun
3-4 wk
18 Jun
15 Jul
0 wk
22 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
Season too short
13 – 27 May
4-6 wk
24 Jun
1 wk after
Lemon balm
Melissa officinalis
9 – 23 Apr
20 May
8-10 wk
18 Jun
15 Jul
0 wk
23 Jul
5 wk after
Dill
Anethum graveolens
22 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
23 Apr – 7 May
3 Jun
6-8 wk
18 Jun
15 Jul
0 wk
22 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
26 Mar – 23 Apr
20 May
8-12 wk
18 Jun
15 Jul
0 wk
23 Jul
5 wk after
Coriander
Coriandrum sativum
18 Jun
14 Aug
0 wk
9 Jul
4 Aug
3 wk after
Garden sage
Salvia officinalis
11 – 25 Apr
5 May
8-10 wk
20 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
9 – 23 Apr
10 May
8-10 wk
18 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
23 Apr – 7 May
24 May
6-8 wk
18 Jun
5 Jul
0 wk
23 Jul
5 wk after
Parsley
Petroselinum crispum
23 Apr – 7 May
24 May
6-8 wk
18 Jun
5 Jul
0 wk
22 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
14 Mar – 11 Apr
30 Mar
10-14 wk
20 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
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Cornflower
Centaurea cyanus
18 Jun
15 Jul
0 wk
22 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Season too short
9 – 23 Apr
8-10 wk
18 Jun
0 wk
Sweet William
Dianthus barbatus
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
4 Jul
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
29 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
23 Apr – 7 May
28 Apr
6-8 wk
18 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
3 – 31 May
12 May
4-8 wk
28 Jun
1 wk after
28 Jun
1 wk after
Foxglove
Digitalis purpurea
9 – 23 Apr
8-10 wk
18 Jun
0 wk
9 Jul
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
8 Apr – 6 May
18 Apr
8-12 wk
1 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
20 May – 3 Jun
4-6 wk
1 Jul
2 wk after
Chinese lantern
Physalis alkekengi
11 – 25 Apr
20 Apr
8-10 wk
20 Jun
0 wk
Love in a mist
Nigella damascena
18 Jun
30 Jun
0 wk
22 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
29 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
28 Mar – 25 Apr
20 Apr
8-12 wk
20 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
26 Mar – 23 Apr
8-12 wk
18 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
1 – 29 Apr
8-12 wk
24 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
29 Apr – 13 May
6-8 wk
24 Jun
1 wk after
Corn poppy
Papaver rhoeas
18 Jun
15 Jul
0 wk
22 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
26 Mar – 23 Apr
10 May
8-12 wk
18 Jun
5 Jul
0 wk
4 Jul
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
15 – 29 Apr
17 Apr
8-10 wk
24 Jun
1 wk after
Sweet pea
Lathyrus odoratus
23 Apr – 14 May
31 May
5-8 wk
18 Jun
5 Jul
0 wk
Stock
Matthiola incana
23 Apr – 7 May
3 Jun
6-8 wk
18 Jun
15 Jul
0 wk
9 Jul
3 wk after
Wormwood
Artemisia absinthium
23 Apr – 7 May
4 May
6-8 wk
18 Jun
0 wk
9 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
13 – 27 May
4-6 wk
24 Jun
1 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Apr
20 May
8-10 wk
18 Jun
15 Jul
0 wk
4 Jul
5 Jul
2 wk after
Petunia
Petunia
Season too short
26 Mar – 23 Apr
7 Apr
8-12 wk
18 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
25 Apr – 9 May
4 May
6-8 wk
20 Jun
0 wk
6 Aug
7 wk after
Common zinnia
Zinnia elegans
Season too short
7 – 21 May
4-6 wk
18 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
20 May – 3 Jun
3-5 wk
24 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
7 – 21 May
12 May
4-6 wk
18 Jun
0 wk
9 Jul
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
8 Apr – 6 May
8-12 wk
1 Jul
2 wk after
Bee balm
Monarda didyma
26 Mar – 23 Apr
20 Apr
8-12 wk
18 Jun
0 wk
23 Jul
5 wk after
Yarrow
Achillea millefolium
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
9 Jul
3 wk after
Safflower
Carthamus tinctorius
18 Jun
0 wk
22 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
23 Apr – 7 May
24 May
6-8 wk
18 Jun
5 Jul
0 wk
31 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
7 – 21 May
7 Jun
4-6 wk
18 Jun
5 Jul
0 wk
9 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
1 – 15 Apr
10-12 wk
24 Jun
1 wk after
Sunflower
Helianthus annuus
3 – 10 Jun
7 Jun
3-4 wk
1 Jul
2 wk after
23 Jul
5 wk after
China aster
Callistephus chinensis
6 – 20 May
27 May
6-8 wk
1 Jul
8 Jul
2 wk after
6 Aug
7 wk after
Annual phlox
Phlox drummondii
Greenhouse
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
9 Jul
3 wk after
Hollyhock
Alcea rosea
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
9 Jul
3 wk after
Alpine delphinium
Delphinium elatum
26 Mar – 23 Apr
20 Apr
8-12 wk
18 Jun
0 wk
23 Jul
5 wk after
African marigold
Tagetes erecta
Greenhouse
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
25 Apr – 9 May
17 May
6-8 wk
20 Jun
28 Jun
0 wk
6 Aug
7 wk after
Wood sage
Salvia nemorosa
9 – 23 Apr
10 Apr
8-10 wk
18 Jun
0 wk
23 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
15 Apr – 13 May
6-10 wk
24 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
18 Jun
15 Jul
0 wk
22 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
22 Apr – 6 May
24 Apr
8-10 wk
1 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
23 Apr – 7 May
4 May
6-8 wk
18 Jun
0 wk
9 Jul
3 wk after