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Method
Rel. frost
Last spring frost (0°C) 23 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 67 days 23 Jun – 29 Aug
Probability that frost is over

75% = 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)
5 – 19 May
13 Jun
5-7 wk
23 Jun
18 Jul
0 wk
24 Jun
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 May
25 Jun
4-6 wk
23 Jun
23 Jul
0 wk
24 Jun
13 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
6 Apr – 4 May
8-12 wk
29 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 May
8 Jun
5-7 wk
23 Jun
13 Jul
0 wk
23 Jun
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
1 – 8 Jun
1 Jun
3-4 wk
29 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
25 May – 1 Jun
5 Jun
4-5 wk
29 Jun
3 Jul
1 wk after
6 Jul
2 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jul
3-4 wk
1 Aug
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
31 Mar – 28 Apr
8-12 wk
23 Jun
0 wk
23 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
20 Jun
0 wk
20 Jun
0 wk
Maize
Zea mays
Greenhouse
26 May – 2 Jun
3-4 wk
23 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 May – 4 Jun
28 Jun
3-4 wk
25 Jun
19 Jul
0 wk
6 Jul
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
23 Jun
3 Jul
0 wk
23 Jun
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 May
8 Jun
5-7 wk
23 Jun
13 Jul
0 wk
23 Jun
3 Jul
0 wk
Potato
Solanum tuberosum
Fleece
13 – 27 May
14 May
4-6 wk
24 Jun
0 wk
24 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 May
18 Jun
5-7 wk
23 Jun
23 Jul
0 wk
24 Jun
13 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
1 – 8 Jun
15 Jun
3-4 wk
29 Jun
6 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
26 May – 2 Jun
7 Jun
3-4 wk
23 Jun
28 Jun
0 wk
23 Jun
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 May
20 Jun
4-6 wk
23 Jun
18 Jul
0 wk
Lettuce
Lactuca sativa
26 May – 2 Jun
7 Jul
3-4 wk
23 Jun
28 Jul
0 wk
24 Jun
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 May
20 Jun
4-6 wk
23 Jun
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
20 May – 3 Jun
25 May
2-4 wk
17 Jun
1 wk before
17 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
20 Jun
0 wk
20 Jun
0 wk
Spinach
Spinacia oleracea
26 May – 2 Jun
22 Jul
3-4 wk
23 Jun
12 Aug
0 wk
20 Jun
2 Aug
0 wk
Sweet potato
Ipomoea batatas
18 Jul – 1 Aug
4-6 wk
29 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
28 Apr – 12 May
1 May
6-8 wk
23 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
26 May – 9 Jun
17 Jun
2-4 wk
23 Jun
1 Jul
0 wk
6 Jul
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 May
20 Jun
4-6 wk
23 Jun
18 Jul
0 wk
Garden pea
Pisum sativum
26 May – 2 Jun
22 Jun
3-4 wk
23 Jun
13 Jul
0 wk
24 Jun
3 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
Season too short
18 May – 1 Jun
24 May
4-6 wk
29 Jun
1 wk after
Lemon balm
Melissa officinalis
14 – 28 Apr
18 May
8-10 wk
23 Jun
13 Jul
0 wk
18 Jul
4 wk after
Dill
Anethum graveolens
24 Jun
19 Jul
0 wk
Wild chives
Allium schoenoprasum
28 Apr – 12 May
1 Jun
6-8 wk
23 Jun
13 Jul
0 wk
24 Jun
3 Jul
0 wk
Spearmint
Mentha spicata
31 Mar – 28 Apr
18 May
8-12 wk
23 Jun
13 Jul
0 wk
18 Jul
4 wk after
Coriander
Coriandrum sativum
23 Jun
8 Aug
0 wk
6 Jul
29 Jul
2 wk after
Garden sage
Salvia officinalis
16 – 30 Apr
3 May
8-10 wk
25 Jun
28 Jun
0 wk
Common thyme
Thymus vulgaris
14 – 28 Apr
8 May
8-10 wk
23 Jun
3 Jul
0 wk
Oregano
Origanum vulgare
28 Apr – 12 May
22 May
6-8 wk
23 Jun
3 Jul
0 wk
18 Jul
4 wk after
Parsley
Petroselinum crispum
28 Apr – 12 May
22 May
6-8 wk
23 Jun
3 Jul
0 wk
24 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
17 Mar – 14 Apr
4 Apr
10-14 wk
23 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
1 – 8 Jun
3-4 wk
29 Jun
1 wk after
Cornflower
Centaurea cyanus
23 Jun
13 Jul
0 wk
24 Jun
3 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
14 – 28 Apr
5 May
8-10 wk
23 Jun
30 Jun
0 wk
Sweet William
Dianthus barbatus
28 Apr – 12 May
6-8 wk
23 Jun
0 wk
3 Jul
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
28 Apr – 12 May
19 May
6-8 wk
23 Jun
30 Jun
0 wk
25 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
30 Apr – 14 May
17 May
6-8 wk
25 Jun
28 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
4 May – 1 Jun
5 Jun
4-8 wk
29 Jun
3 Jul
1 wk after
29 Jun
1 wk after
Foxglove
Digitalis purpurea
14 – 28 Apr
8-10 wk
23 Jun
0 wk
6 Jul
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
13 Apr – 11 May
11 Jun
8-12 wk
6 Jul
6 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
28 Apr – 12 May
29 May
6-8 wk
23 Jun
10 Jul
0 wk
Hyacinth bean
Dolichos lablab
Season too short
25 May – 8 Jun
4-6 wk
6 Jul
2 wk after
Chinese lantern
Physalis alkekengi
16 – 30 Apr
8-10 wk
25 Jun
0 wk
Love in a mist
Nigella damascena
23 Jun
28 Jun
0 wk
24 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
28 Apr – 12 May
9 May
6-8 wk
23 Jun
0 wk
25 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
2 – 30 Apr
14 Apr
8-12 wk
25 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
31 Mar – 28 Apr
8-12 wk
23 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
6 Apr – 4 May
16 Apr
8-12 wk
29 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
4 – 18 May
6-8 wk
29 Jun
1 wk after
Corn poppy
Papaver rhoeas
23 Jun
13 Jul
0 wk
24 Jun
3 Jul
0 wk
Snapdragon
Antirrhinum majus
31 Mar – 28 Apr
8 May
8-12 wk
23 Jun
3 Jul
0 wk
3 Jul
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
20 Apr – 4 May
15 May
8-10 wk
29 Jun
10 Jul
1 wk after
Sweet pea
Lathyrus odoratus
28 Apr – 19 May
29 May
5-8 wk
23 Jun
3 Jul
0 wk
Stock
Matthiola incana
28 Apr – 12 May
1 Jun
6-8 wk
23 Jun
13 Jul
0 wk
6 Jul
2 wk after
Wormwood
Artemisia absinthium
28 Apr – 12 May
2 May
6-8 wk
23 Jun
0 wk
6 Jul
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
18 May – 1 Jun
4-6 wk
29 Jun
1 wk after
Garden pansy
Viola × wittrockiana
14 – 28 Apr
18 May
8-10 wk
23 Jun
13 Jul
0 wk
3 Jul
3 Jul
1 wk after
Petunia
Petunia
Greenhouse
31 Mar – 28 Apr
5 May
8-12 wk
23 Jun
30 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
30 Apr – 14 May
6-8 wk
25 Jun
0 wk
5 Aug
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
12 – 26 May
10 Jun
4-6 wk
23 Jun
8 Jul
0 wk
Common morning glory
Ipomoea purpurea
Season too short
25 May – 8 Jun
31 May
3-5 wk
29 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
18 May – 1 Jun
31 May
4-6 wk
29 Jun
1 wk after
18 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
13 Apr – 11 May
16 May
8-12 wk
6 Jul
11 Jul
2 wk after
Bee balm
Monarda didyma
31 Mar – 28 Apr
18 Apr
8-12 wk
23 Jun
0 wk
18 Jul
4 wk after
Yarrow
Achillea millefolium
28 Apr – 12 May
6-8 wk
23 Jun
0 wk
6 Jul
2 wk after
Safflower
Carthamus tinctorius
23 Jun
0 wk
24 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
28 Apr – 12 May
22 May
6-8 wk
23 Jun
3 Jul
0 wk
7 Jun
23 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 May
5 Jun
4-6 wk
23 Jun
3 Jul
0 wk
6 Jul
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
6 – 20 Apr
10-12 wk
29 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
1 – 8 Jun
12 Jun
3-4 wk
29 Jun
3 Jul
1 wk after
6 Jul
2 wk after
China aster
Callistephus chinensis
Fleece
4 – 18 May
1 Jun
6-8 wk
29 Jun
13 Jul
1 wk after
18 Jul
4 wk after
Annual phlox
Phlox drummondii
Fleece
28 Apr – 12 May
16 May
6-8 wk
23 Jun
27 Jun
0 wk
18 Jul
4 wk after
Hollyhock
Alcea rosea
28 Apr – 12 May
6-8 wk
23 Jun
0 wk
6 Jul
2 wk after
Alpine delphinium
Delphinium elatum
31 Mar – 28 Apr
18 Apr
8-12 wk
23 Jun
0 wk
18 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
28 Apr – 12 May
29 May
6-8 wk
23 Jun
10 Jul
0 wk
Black-eyed Susan
Rudbeckia hirta
30 Apr – 14 May
11 May
6-8 wk
25 Jun
0 wk
5 Aug
6 wk after
Wood sage
Salvia nemorosa
14 – 28 Apr
8-10 wk
23 Jun
0 wk
18 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
20 Apr – 18 May
10 May
6-10 wk
29 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
23 Jun
13 Jul
0 wk
24 Jun
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
20 Apr – 4 May
4 May
8-10 wk
29 Jun
29 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
28 Apr – 12 May
2 May
6-8 wk
23 Jun
0 wk
6 Jul
2 wk after