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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 9 of 10 years · 20 years of data
Frost-free season 82 days 27 May – 17 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)
8 – 22 Apr
10 Jun
5-7 wk
27 May
15 Jul
0 wk
28 May
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
22 Jun
4-6 wk
27 May
20 Jul
0 wk
28 May
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
5 – 12 May
3-4 wk
2 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Season too short
28 Apr – 5 May
19 May
4-5 wk
2 Jun
16 Jun
1 wk after
9 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
4 Mar – 1 Apr
8 Mar
8-12 wk
27 May
0 wk
27 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
18 May
23 May
1 wk before
18 May
1 wk before
Maize
Zea mays
Season too short
29 Apr – 6 May
3-4 wk
27 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
13 Jun
3-4 wk
29 May
4 Jul
0 wk
9 Jun
24 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
16 Jun
0 wk
27 May
6 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
12 – 26 Apr
27 Apr
4-6 wk
24 May
25 May
0 wk
24 May
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
1 Jun
5-7 wk
27 May
6 Jul
0 wk
28 May
26 Jun
0 wk
Pumpkin
Cucurbita pepo
Season too short
5 – 12 May
3-4 wk
2 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
29 Apr – 6 May
11 May
3-4 wk
27 May
1 Jun
0 wk
27 May
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
20 Jun
3-4 wk
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Greenhouse
13 – 27 Apr
13 May
2-4 wk
11 May
27 May
2 wk before
11 May
17 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
18 May
23 May
1 wk before
18 May
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
15 Jul
3-4 wk
27 May
5 Aug
0 wk
24 May
26 Jul
0 wk
Sweet potato
Ipomoea batatas
21 Jun – 5 Jul
4-6 wk
2 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
29 Apr – 13 May
2-4 wk
27 May
0 wk
9 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
5 Jun
3-4 wk
27 May
26 Jun
0 wk
28 May
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
21 Apr – 5 May
4-6 wk
2 Jun
1 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
1 May
8-10 wk
27 May
26 Jun
0 wk
21 Jun
4 wk after
Dill
Anethum graveolens
28 May
4 Jul
0 wk
Wild chives
Allium schoenoprasum
1 – 15 Apr
30 May
6-8 wk
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Spearmint
Mentha spicata
4 Mar – 1 Apr
15 May
8-12 wk
27 May
10 Jul
0 wk
21 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
27 May
24 Jul
0 wk
9 Jun
14 Jul
2 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
1 May
8-10 wk
29 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
6 May
8-10 wk
27 May
1 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
19 May
6-8 wk
27 May
30 Jun
0 wk
21 Jun
4 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
19 May
6-8 wk
27 May
30 Jun
0 wk
28 May
20 Jun
0 wk
Rosemary
Salvia rosmarinus
Greenhouse
18 Feb – 18 Mar
23 Mar
10-14 wk
27 May
1 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
5 – 12 May
3-4 wk
2 Jun
1 wk after
Cornflower
Centaurea cyanus
27 May
10 Jul
0 wk
28 May
30 Jun
0 wk
Statice
Limonium sinuatum
Season too short
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
28 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
7 Apr – 5 May
13 Apr
4-8 wk
2 Jun
1 wk after
2 Jun
1 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
9 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Season too short
10 Mar – 7 Apr
26 Mar
8-12 wk
2 Jun
1 wk after
Creeping zinnia
Sanvitalia procumbens
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
18 Mar – 1 Apr
11 Apr
8-10 wk
27 May
6 Jun
0 wk
Love in a mist
Nigella damascena
27 May
11 Jun
0 wk
28 May
1 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
28 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
Greenhouse
4 Mar – 1 Apr
11 Apr
8-12 wk
27 May
6 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
4 Mar – 1 Apr
12 Mar
8-12 wk
27 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
7 – 21 Apr
6-8 wk
2 Jun
1 wk after
Corn poppy
Papaver rhoeas
27 May
26 Jun
0 wk
28 May
16 Jun
0 wk
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
21 Apr
8-12 wk
27 May
16 Jun
0 wk
6 Jun
6 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
24 Mar – 7 Apr
8-10 wk
2 Jun
1 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
26 May
5-8 wk
27 May
30 Jun
0 wk
Stock
Matthiola incana
1 – 15 Apr
15 May
6-8 wk
27 May
26 Jun
0 wk
9 Jun
16 Jun
2 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
21 Apr – 5 May
4-6 wk
2 Jun
1 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
16 May
8-10 wk
27 May
11 Jul
0 wk
6 Jun
1 Jul
1 wk after
Petunia
Petunia
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
Greenhouse
1 – 15 Apr
25 Apr
6-8 wk
27 May
6 Jun
0 wk
9 Jun
2 wk after
Common zinnia
Zinnia elegans
Season too short
15 – 29 Apr
4-6 wk
27 May
0 wk
Common morning glory
Ipomoea purpurea
Season too short
28 Apr – 12 May
3-5 wk
2 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Season too short
15 – 29 Apr
4-6 wk
27 May
0 wk
9 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
2 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
1 Apr
8-12 wk
27 May
27 May
0 wk
21 Jun
4 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Safflower
Carthamus tinctorius
27 May
6 Jun
0 wk
28 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
11 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
19 May
4-6 wk
27 May
16 Jun
0 wk
9 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
10 – 24 Mar
10-12 wk
2 Jun
1 wk after
Sunflower
Helianthus annuus
Greenhouse
29 Apr – 6 May
31 May
3-4 wk
27 May
21 Jun
0 wk
2 Jun
11 Jun
1 wk after
China aster
Callistephus chinensis
Fleece
7 – 21 Apr
14 May
6-8 wk
2 Jun
25 Jun
1 wk after
21 Jun
4 wk after
Annual phlox
Phlox drummondii
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Alpine delphinium
Delphinium elatum
Fleece
4 Mar – 1 Apr
11 Apr
8-12 wk
27 May
6 Jun
0 wk
9 Jun
2 wk after
African marigold
Tagetes erecta
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Black-eyed Susan
Rudbeckia hirta
Fleece
1 – 15 Apr
4 May
6-8 wk
27 May
15 Jun
0 wk
21 Jun
4 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
22 Mar
8-10 wk
27 May
0 wk
21 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
24 Mar – 21 Apr
6-10 wk
2 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
27 May
25 Jun
0 wk
28 May
15 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Greenhouse
18 Mar – 1 Apr
21 Apr
8-10 wk
27 May
16 Jun
0 wk
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after