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Method
Rel. frost
Last spring frost (0°C) 3 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 108 days 3 Jun – 19 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)
15 – 29 Apr
12 Jun
5-7 wk
3 Jun
17 Jul
0 wk
4 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
24 Jun
4-6 wk
3 Jun
22 Jul
0 wk
4 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Apr
7 Jun
5-7 wk
3 Jun
12 Jul
0 wk
3 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
3-4 wk
9 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
12 – 19 May
4 Jun
4-5 wk
16 Jun
2 Jul
2 wk after
28 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
11 Mar – 8 Apr
28 Mar
8-12 wk
3 Jun
0 wk
9 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
4 Jun
0 wk
4 Jun
0 wk
Maize
Zea mays
Season too short
6 – 13 May
3-4 wk
3 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
8 – 15 May
1 Jul
3-4 wk
5 Jun
22 Jul
0 wk
16 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Jun
2 Jul
0 wk
3 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Apr
7 Jun
5-7 wk
3 Jun
12 Jul
0 wk
3 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
2 – 16 May
20 May
4-6 wk
13 Jun
17 Jun
1 wk after
13 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Apr
17 Jun
5-7 wk
3 Jun
22 Jul
0 wk
4 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
12 – 19 May
28 May
3-4 wk
9 Jun
18 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
8 – 15 May
31 May
3-4 wk
5 Jun
21 Jun
0 wk
16 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
19 Jun
4-6 wk
3 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 May
6 Jul
3-4 wk
3 Jun
27 Jul
0 wk
4 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Apr – 6 May
19 Jun
4-6 wk
3 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 May
29 May
2-4 wk
3 Jun
12 Jun
0 wk
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
4 Jun
0 wk
4 Jun
0 wk
Spinach
Spinacia oleracea
6 – 13 May
21 Jul
3-4 wk
3 Jun
11 Aug
0 wk
31 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
8 – 22 Apr
6-8 wk
3 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
12 May
2-4 wk
9 Jun
1 wk after
28 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
19 Jun
4-6 wk
3 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 May
21 Jun
3-4 wk
3 Jun
12 Jul
0 wk
4 Jun
2 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
28 Apr – 12 May
6 May
4-6 wk
9 Jun
1 wk after
Lemon balm
Melissa officinalis
25 Mar – 8 Apr
17 May
8-10 wk
3 Jun
12 Jul
0 wk
28 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
4 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
8 – 22 Apr
31 May
6-8 wk
3 Jun
12 Jul
0 wk
4 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
11 Mar – 8 Apr
17 May
8-12 wk
3 Jun
12 Jul
0 wk
28 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
3 Jun
11 Aug
0 wk
16 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
27 Mar – 10 Apr
2 May
8-10 wk
5 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
25 Mar – 8 Apr
7 May
8-10 wk
3 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
8 – 22 Apr
21 May
6-8 wk
3 Jun
2 Jul
0 wk
28 Jun
4 wk after
Parsley
Petroselinum crispum
8 – 22 Apr
21 May
6-8 wk
3 Jun
2 Jul
0 wk
4 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
27 Feb – 27 Mar
3 Apr
10-14 wk
5 Jun
12 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
12 – 19 May
13 May
3-4 wk
9 Jun
1 wk after
Cornflower
Centaurea cyanus
3 Jun
12 Jul
0 wk
4 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
31 Mar – 14 Apr
9 Apr
8-10 wk
9 Jun
1 wk after
Sweet William
Dianthus barbatus
8 – 22 Apr
6-8 wk
3 Jun
0 wk
13 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
14 – 28 Apr
23 Apr
6-8 wk
9 Jun
1 wk after
23 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
10 – 24 Apr
24 Apr
6-8 wk
5 Jun
5 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
14 Apr – 12 May
16 May
4-8 wk
9 Jun
13 Jun
1 wk after
9 Jun
1 wk after
Foxglove
Digitalis purpurea
25 Mar – 8 Apr
8-10 wk
3 Jun
0 wk
16 Jun
2 wk after
Busy lizzie
Impatiens walleriana
12 Apr – 10 May
6 May
8-12 wk
5 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
14 – 28 Apr
3 May
6-8 wk
9 Jun
14 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
5 – 19 May
4-6 wk
16 Jun
2 wk after
Chinese lantern
Physalis alkekengi
27 Mar – 10 Apr
17 Apr
8-10 wk
5 Jun
12 Jun
0 wk
Love in a mist
Nigella damascena
3 Jun
27 Jun
0 wk
4 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
14 – 28 Apr
6-8 wk
9 Jun
1 wk after
23 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
13 Mar – 10 Apr
17 Apr
8-12 wk
5 Jun
12 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
17 Mar – 14 Apr
18 Mar
8-12 wk
9 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
17 Mar – 14 Apr
29 Mar
8-12 wk
9 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
1 wk after
Corn poppy
Papaver rhoeas
3 Jun
12 Jul
0 wk
4 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
11 Mar – 8 Apr
7 May
8-12 wk
3 Jun
2 Jul
0 wk
13 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
7 – 21 Apr
19 Apr
8-10 wk
16 Jun
2 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Apr
28 May
5-8 wk
3 Jun
2 Jul
0 wk
Stock
Matthiola incana
8 – 22 Apr
31 May
6-8 wk
3 Jun
12 Jul
0 wk
16 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
8 – 22 Apr
1 May
6-8 wk
3 Jun
12 Jun
0 wk
16 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
1 wk after
Garden pansy
Viola × wittrockiana
25 Mar – 8 Apr
17 May
8-10 wk
3 Jun
12 Jul
0 wk
13 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
17 Mar – 14 Apr
9 Apr
8-12 wk
9 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Apr
1 May
6-8 wk
5 Jun
12 Jun
0 wk
16 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
28 Apr – 12 May
6 May
4-6 wk
9 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
5 – 19 May
13 May
3-5 wk
9 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
28 Apr – 12 May
8 May
4-6 wk
9 Jun
1 wk after
28 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
24 Mar – 21 Apr
28 Apr
8-12 wk
16 Jun
23 Jun
2 wk after
Bee balm
Monarda didyma
11 Mar – 8 Apr
17 Apr
8-12 wk
3 Jun
12 Jun
0 wk
28 Jun
4 wk after
Yarrow
Achillea millefolium
8 – 22 Apr
6-8 wk
3 Jun
0 wk
16 Jun
2 wk after
Safflower
Carthamus tinctorius
3 Jun
12 Jun
0 wk
4 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
8 – 22 Apr
21 May
6-8 wk
3 Jun
2 Jul
0 wk
18 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
22 Apr – 6 May
4 Jun
4-6 wk
3 Jun
2 Jul
0 wk
16 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
17 – 31 Mar
10-12 wk
9 Jun
1 wk after
Sunflower
Helianthus annuus
19 – 26 May
11 Jun
3-4 wk
16 Jun
2 Jul
2 wk after
28 Jun
4 wk after
China aster
Callistephus chinensis
21 Apr – 5 May
31 May
6-8 wk
16 Jun
12 Jul
2 wk after
16 Jul
6 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
6-8 wk
9 Jun
1 wk after
16 Jul
6 wk after
Hollyhock
Alcea rosea
8 – 22 Apr
6-8 wk
3 Jun
0 wk
16 Jun
2 wk after
Alpine delphinium
Delphinium elatum
11 Mar – 8 Apr
17 Apr
8-12 wk
3 Jun
12 Jun
0 wk
28 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
14 – 28 Apr
3 May
6-8 wk
9 Jun
14 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Apr
21 May
6-8 wk
5 Jun
2 Jul
0 wk
16 Jul
6 wk after
Wood sage
Salvia nemorosa
25 Mar – 8 Apr
7 Apr
8-10 wk
3 Jun
0 wk
28 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
31 Mar – 28 Apr
22 Apr
6-10 wk
9 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
3 Jun
12 Jul
0 wk
4 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
7 – 21 Apr
4 May
8-10 wk
16 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Apr
1 May
6-8 wk
3 Jun
12 Jun
0 wk
16 Jun
2 wk after