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Method
Rel. frost
Last spring frost (0°C) 17 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 107 days 17 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)
29 Apr – 13 May
10 Jun
5-7 wk
17 Jun
15 Jul
0 wk
18 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 May
22 Jun
4-6 wk
17 Jun
20 Jul
0 wk
18 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
31 Mar – 28 Apr
8-12 wk
23 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
29 Apr – 13 May
5 Jun
5-7 wk
17 Jun
10 Jul
0 wk
17 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
26 May – 2 Jun
3-4 wk
23 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
19 – 26 May
2 Jun
4-5 wk
23 Jun
30 Jun
1 wk after
30 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
28 Jun – 5 Jul
3-4 wk
26 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
25 Mar – 22 Apr
8-12 wk
17 Jun
0 wk
17 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
8 Jun
8 Jun
1 wk before
8 Jun
1 wk before
Maize
Zea mays
Season too short
20 – 27 May
3-4 wk
17 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
22 – 29 May
29 Jun
3-4 wk
19 Jun
20 Jul
0 wk
30 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Jun
30 Jun
0 wk
17 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
29 Apr – 13 May
5 Jun
5-7 wk
17 Jun
10 Jul
0 wk
17 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Season too short
3 – 17 May
20 May
4-6 wk
14 Jun
17 Jun
0 wk
14 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Apr – 13 May
15 Jun
5-7 wk
17 Jun
20 Jul
0 wk
18 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
26 May – 2 Jun
3-4 wk
23 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
20 – 27 May
20 May
3-4 wk
17 Jun
0 wk
23 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 May
17 Jun
4-6 wk
17 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 May
4 Jul
3-4 wk
17 Jun
25 Jul
0 wk
18 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 May
17 Jun
4-6 wk
17 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
4 – 18 May
27 May
2-4 wk
1 Jun
10 Jun
2 wk before
1 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
8 Jun
8 Jun
1 wk before
8 Jun
1 wk before
Spinach
Spinacia oleracea
20 – 27 May
19 Jul
3-4 wk
17 Jun
9 Aug
0 wk
14 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
12 – 26 Jul
4-6 wk
23 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
22 Apr – 6 May
6-8 wk
17 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
20 May – 3 Jun
21 May
2-4 wk
17 Jun
0 wk
30 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 May
17 Jun
4-6 wk
17 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 May
19 Jun
3-4 wk
17 Jun
10 Jul
0 wk
18 Jun
30 Jun
0 wk

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