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Method
Rel. frost
Last spring frost (0°C) 6 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 110 days 6 Jun – 24 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)
18 Apr – 2 May
15 Jun
5-7 wk
6 Jun
20 Jul
0 wk
10 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
25 Apr – 9 May
27 Jun
4-6 wk
6 Jun
25 Jul
0 wk
10 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Apr – 2 May
10 Jun
5-7 wk
6 Jun
15 Jul
0 wk
6 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
24 – 31 May
3-4 wk
21 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
14 – 21 Jun
4-5 wk
19 Jul
6 wk after
25 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
26 Jun – 3 Jul
3-4 wk
24 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
14 Mar – 11 Apr
31 Mar
8-12 wk
6 Jun
0 wk
27 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
10 Jun
15 Jun
1 wk after
10 Jun
1 wk after
Maize
Zea mays
Season too short
10 – 17 May
3-4 wk
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
17 – 24 May
4 Jul
3-4 wk
14 Jun
25 Jul
1 wk after
27 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 Jun
5 Jul
0 wk
6 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Apr – 2 May
10 Jun
5-7 wk
6 Jun
15 Jul
0 wk
6 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
11 – 25 May
30 May
4-6 wk
22 Jun
27 Jun
2 wk after
22 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Apr – 2 May
20 Jun
5-7 wk
6 Jun
25 Jul
0 wk
10 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
24 – 31 May
24 May
3-4 wk
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
17 – 24 May
6 Jun
3-4 wk
14 Jun
27 Jun
1 wk after
27 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Apr – 9 May
22 Jun
4-6 wk
6 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
9 – 16 May
9 Jul
3-4 wk
6 Jun
30 Jul
0 wk
10 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Apr – 9 May
22 Jun
4-6 wk
6 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
9 – 23 May
1 Jun
2-4 wk
6 Jun
15 Jun
0 wk
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
10 Jun
15 Jun
1 wk after
10 Jun
1 wk after
Spinach
Spinacia oleracea
9 – 16 May
24 Jul
3-4 wk
6 Jun
14 Aug
0 wk
2 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
8 – 22 Jul
4-6 wk
19 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
12 – 26 Apr
6-8 wk
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
10 – 24 May
26 May
2-4 wk
7 Jun
9 Jun
0 wk
27 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Apr – 9 May
22 Jun
4-6 wk
6 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
9 – 16 May
24 Jun
3-4 wk
6 Jun
15 Jul
0 wk
10 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
10 – 24 May
4-6 wk
21 Jun
2 wk after
Lemon balm
Melissa officinalis
28 Mar – 11 Apr
20 May
8-10 wk
6 Jun
15 Jul
0 wk
11 Jul
5 wk after
Dill
Anethum graveolens
10 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
11 – 25 Apr
3 Jun
6-8 wk
6 Jun
15 Jul
0 wk
10 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
14 Mar – 11 Apr
20 May
8-12 wk
6 Jun
15 Jul
0 wk
11 Jul
5 wk after
Coriander
Coriandrum sativum
6 Jun
14 Aug
0 wk
27 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
5 – 19 Apr
5 May
8-10 wk
14 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
28 Mar – 11 Apr
10 May
8-10 wk
6 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Apr
24 May
6-8 wk
6 Jun
5 Jul
0 wk
11 Jul
5 wk after
Parsley
Petroselinum crispum
11 – 25 Apr
24 May
6-8 wk
6 Jun
5 Jul
0 wk
10 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
8 Mar – 5 Apr
6 Apr
10-14 wk
14 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
24 – 31 May
3-4 wk
21 Jun
2 wk after
Cornflower
Centaurea cyanus
6 Jun
15 Jul
0 wk
10 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Greenhouse
29 Mar – 12 Apr
21 Apr
8-10 wk
7 Jun
16 Jun
0 wk
Sweet William
Dianthus barbatus
11 – 25 Apr
6-8 wk
6 Jun
0 wk
22 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
12 – 26 Apr
5 May
6-8 wk
7 Jun
16 Jun
0 wk
17 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
19 Apr – 3 May
26 Apr
6-8 wk
14 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
2 – 30 May
10 May
4-8 wk
27 Jun
3 wk after
27 Jun
3 wk after
Foxglove
Digitalis purpurea
28 Mar – 11 Apr
8-10 wk
6 Jun
0 wk
27 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
10 Apr – 8 May
20 May
8-12 wk
3 Jul
15 Jul
4 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 May – 5 Jun
4-6 wk
3 Jul
4 wk after
Chinese lantern
Physalis alkekengi
5 – 19 Apr
20 Apr
8-10 wk
14 Jun
15 Jun
1 wk after
Love in a mist
Nigella damascena
6 Jun
30 Jun
0 wk
10 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
12 – 26 Apr
25 Apr
6-8 wk
7 Jun
0 wk
17 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
22 Mar – 19 Apr
20 Apr
8-12 wk
14 Jun
15 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
2 wk after
Corn poppy
Papaver rhoeas
6 Jun
15 Jul
0 wk
10 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
14 Mar – 11 Apr
10 May
8-12 wk
6 Jun
5 Jul
0 wk
22 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
12 – 26 Apr
1 May
8-10 wk
21 Jun
26 Jun
2 wk after
Sweet pea
Lathyrus odoratus
11 Apr – 2 May
31 May
5-8 wk
6 Jun
5 Jul
0 wk
Stock
Matthiola incana
11 – 25 Apr
3 Jun
6-8 wk
6 Jun
15 Jul
0 wk
27 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
0 wk
27 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
10 – 24 May
4-6 wk
21 Jun
2 wk after
Garden pansy
Viola × wittrockiana
28 Mar – 11 Apr
20 May
8-10 wk
6 Jun
15 Jul
0 wk
22 Jun
5 Jul
2 wk after
Petunia
Petunia
Greenhouse
15 Mar – 12 Apr
21 Apr
8-12 wk
7 Jun
16 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
19 Apr – 3 May
4 May
6-8 wk
14 Jun
15 Jun
1 wk after
25 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
10 – 24 May
4-6 wk
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
17 – 31 May
3-5 wk
21 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
10 – 24 May
10 May
4-6 wk
21 Jun
2 wk after
11 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
10 Apr – 8 May
24 Apr
8-12 wk
3 Jul
4 wk after
Bee balm
Monarda didyma
14 Mar – 11 Apr
20 Apr
8-12 wk
6 Jun
15 Jun
0 wk
11 Jul
5 wk after
Yarrow
Achillea millefolium
11 – 25 Apr
6-8 wk
6 Jun
0 wk
27 Jun
3 wk after
Safflower
Carthamus tinctorius
6 Jun
15 Jun
0 wk
10 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Apr
24 May
6-8 wk
6 Jun
5 Jul
0 wk
19 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
25 Apr – 9 May
7 Jun
4-6 wk
6 Jun
5 Jul
0 wk
27 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
29 Mar – 12 Apr
10-12 wk
21 Jun
2 wk after
Sunflower
Helianthus annuus
5 – 12 Jun
14 Jun
3-4 wk
3 Jul
5 Jul
4 wk after
11 Jul
5 wk after
China aster
Callistephus chinensis
8 – 22 May
3 Jun
6-8 wk
3 Jul
15 Jul
4 wk after
25 Jul
7 wk after
Annual phlox
Phlox drummondii
Fleece
12 – 26 Apr
20 Apr
6-8 wk
7 Jun
0 wk
11 Jul
5 wk after
Hollyhock
Alcea rosea
11 – 25 Apr
6-8 wk
6 Jun
0 wk
27 Jun
3 wk after
Alpine delphinium
Delphinium elatum
14 Mar – 11 Apr
20 Apr
8-12 wk
6 Jun
15 Jun
0 wk
11 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
19 Apr – 3 May
24 May
6-8 wk
14 Jun
5 Jul
1 wk after
25 Jul
7 wk after
Wood sage
Salvia nemorosa
28 Mar – 11 Apr
10 Apr
8-10 wk
6 Jun
0 wk
11 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
12 Apr – 10 May
18 Apr
6-10 wk
21 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
6 Jun
15 Jul
0 wk
10 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
24 Apr – 8 May
3 May
8-10 wk
3 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Apr
4 May
6-8 wk
6 Jun
15 Jun
0 wk
27 Jun
3 wk after