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