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Method
Rel. frost
Last spring frost (0°C) 8 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 94 days 8 Jun – 10 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)
20 Apr – 4 May
11 Jun
5-7 wk
8 Jun
16 Jul
0 wk
9 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
27 Apr – 11 May
23 Jun
4-6 wk
8 Jun
21 Jul
0 wk
9 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
20 Apr – 4 May
6 Jun
5-7 wk
8 Jun
11 Jul
0 wk
8 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
17 – 24 May
3-4 wk
14 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
17 – 24 May
3 Jun
4-5 wk
21 Jun
1 Jul
2 wk after
3 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 Jun
3-4 wk
17 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
16 Mar – 13 Apr
27 Mar
8-12 wk
8 Jun
0 wk
14 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
9 Jun
0 wk
9 Jun
0 wk
Maize
Zea mays
Season too short
11 – 18 May
3-4 wk
8 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
13 – 20 May
30 Jun
3-4 wk
10 Jun
21 Jul
0 wk
21 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 Jun
1 Jul
0 wk
8 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
20 Apr – 4 May
6 Jun
5-7 wk
8 Jun
11 Jul
0 wk
8 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
7 – 21 May
21 May
4-6 wk
18 Jun
18 Jun
1 wk after
18 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
20 Apr – 4 May
16 Jun
5-7 wk
8 Jun
21 Jul
0 wk
9 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
24 – 31 May
3-4 wk
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
13 – 20 May
6 Jun
3-4 wk
10 Jun
27 Jun
0 wk
21 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
27 Apr – 11 May
18 Jun
4-6 wk
8 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
11 – 18 May
5 Jul
3-4 wk
8 Jun
26 Jul
0 wk
9 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Apr – 11 May
18 Jun
4-6 wk
8 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
11 – 25 May
28 May
2-4 wk
8 Jun
11 Jun
0 wk
8 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
9 Jun
0 wk
9 Jun
0 wk
Spinach
Spinacia oleracea
11 – 18 May
20 Jul
3-4 wk
8 Jun
10 Aug
0 wk
5 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
3 – 17 Jul
4-6 wk
14 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
13 – 27 Apr
6-8 wk
8 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
17 – 31 May
2-4 wk
14 Jun
1 wk after
3 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
27 Apr – 11 May
18 Jun
4-6 wk
8 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
11 – 18 May
20 Jun
3-4 wk
8 Jun
11 Jul
0 wk
9 Jun
1 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
Greenhouse
3 – 17 May
4-6 wk
14 Jun
1 wk after
Lemon balm
Melissa officinalis
30 Mar – 13 Apr
16 May
8-10 wk
8 Jun
11 Jul
0 wk
3 Jul
4 wk after
Dill
Anethum graveolens
9 Jun
21 Jul
0 wk
Wild chives
Allium schoenoprasum
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
16 Mar – 13 Apr
16 May
8-12 wk
8 Jun
11 Jul
0 wk
3 Jul
4 wk after
Coriander
Coriandrum sativum
8 Jun
10 Aug
0 wk
21 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
1 – 15 Apr
1 May
8-10 wk
10 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
30 Mar – 13 Apr
6 May
8-10 wk
8 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
0 wk
3 Jul
4 wk after
Parsley
Petroselinum crispum
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
0 wk
9 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
4 Mar – 1 Apr
1 Apr
10-14 wk
10 Jun
10 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
Greenhouse
17 – 24 May
3-4 wk
14 Jun
1 wk after
Cornflower
Centaurea cyanus
8 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
30 Mar – 13 Apr
30 Mar
8-10 wk
8 Jun
0 wk
Sweet William
Dianthus barbatus
13 – 27 Apr
6-8 wk
8 Jun
0 wk
18 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
13 – 27 Apr
13 Apr
6-8 wk
8 Jun
0 wk
10 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
13 – 27 Apr
23 Apr
6-8 wk
8 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
19 Apr – 17 May
7 May
4-8 wk
14 Jun
1 wk after
14 Jun
1 wk after
Foxglove
Digitalis purpurea
30 Mar – 13 Apr
8-10 wk
8 Jun
0 wk
21 Jun
2 wk after
Busy lizzie
Impatiens walleriana
17 Apr – 15 May
6 May
8-12 wk
10 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
19 Apr – 3 May
6-8 wk
14 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
10 – 24 May
4-6 wk
21 Jun
2 wk after
Chinese lantern
Physalis alkekengi
1 – 15 Apr
16 Apr
8-10 wk
10 Jun
11 Jun
0 wk
Love in a mist
Nigella damascena
8 Jun
26 Jun
0 wk
9 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
13 – 27 Apr
6-8 wk
8 Jun
0 wk
10 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
18 Mar – 15 Apr
16 Apr
8-12 wk
10 Jun
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
22 Mar – 19 Apr
8-12 wk
14 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
22 Mar – 19 Apr
8-12 wk
14 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
19 Apr – 3 May
6-8 wk
14 Jun
1 wk after
Corn poppy
Papaver rhoeas
8 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
16 Mar – 13 Apr
6 May
8-12 wk
8 Jun
1 Jul
0 wk
18 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
12 – 26 Apr
8-10 wk
21 Jun
2 wk after
Sweet pea
Lathyrus odoratus
13 Apr – 4 May
27 May
5-8 wk
8 Jun
1 Jul
0 wk
Stock
Matthiola incana
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
0 wk
21 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Apr
30 Apr
6-8 wk
8 Jun
11 Jun
0 wk
21 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
3 – 17 May
4-6 wk
14 Jun
1 wk after
Garden pansy
Viola × wittrockiana
30 Mar – 13 Apr
16 May
8-10 wk
8 Jun
11 Jul
0 wk
18 Jun
1 Jul
1 wk after
Petunia
Petunia
Greenhouse
16 Mar – 13 Apr
30 Mar
8-12 wk
8 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
15 – 29 Apr
30 Apr
6-8 wk
10 Jun
11 Jun
0 wk
21 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
3 – 17 May
4-6 wk
14 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
10 – 24 May
3-5 wk
14 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
27 Apr – 11 May
7 May
4-6 wk
8 Jun
0 wk
21 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
29 Mar – 26 Apr
19 Apr
8-12 wk
21 Jun
2 wk after
Bee balm
Monarda didyma
16 Mar – 13 Apr
16 Apr
8-12 wk
8 Jun
11 Jun
0 wk
3 Jul
4 wk after
Yarrow
Achillea millefolium
13 – 27 Apr
6-8 wk
8 Jun
0 wk
21 Jun
2 wk after
Safflower
Carthamus tinctorius
8 Jun
11 Jun
0 wk
9 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
0 wk
23 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
27 Apr – 11 May
3 Jun
4-6 wk
8 Jun
1 Jul
0 wk
21 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
22 Mar – 5 Apr
10-12 wk
14 Jun
1 wk after
Sunflower
Helianthus annuus
24 – 31 May
9 Jun
3-4 wk
21 Jun
30 Jun
2 wk after
3 Jul
4 wk after
China aster
Callistephus chinensis
26 Apr – 10 May
29 May
6-8 wk
21 Jun
10 Jul
2 wk after
21 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
13 – 27 Apr
16 Apr
6-8 wk
8 Jun
0 wk
3 Jul
4 wk after
Hollyhock
Alcea rosea
13 – 27 Apr
6-8 wk
8 Jun
0 wk
21 Jun
2 wk after
Alpine delphinium
Delphinium elatum
16 Mar – 13 Apr
16 Apr
8-12 wk
8 Jun
11 Jun
0 wk
3 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
19 Apr – 3 May
6-8 wk
14 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
15 – 29 Apr
19 May
6-8 wk
10 Jun
30 Jun
0 wk
21 Jul
6 wk after
Wood sage
Salvia nemorosa
30 Mar – 13 Apr
6 Apr
8-10 wk
8 Jun
0 wk
3 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
5 Apr – 3 May
13 Apr
6-10 wk
14 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
8 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
12 – 26 Apr
21 Apr
8-10 wk
21 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Apr
30 Apr
6-8 wk
8 Jun
11 Jun
0 wk
21 Jun
2 wk after