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Method
Rel. frost
Last spring frost (0°C) 5 Jun Frost 9 of 10 years · 20 years of data
Frost-free season 61 days 5 Jun – 5 Aug
Probability that frost is over

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