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Method
Rel. frost
Last spring frost (0°C) 9 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 109 days 9 Jun – 26 Sep
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)
21 Apr – 5 May
10 Jun
5-7 wk
9 Jun
15 Jul
0 wk
10 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
10 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
5 Jun
5-7 wk
9 Jun
10 Jul
0 wk
9 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
18 – 25 May
23 May
3-4 wk
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
11 – 18 May
2 Jun
4-5 wk
15 Jun
30 Jun
1 wk after
22 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
17 Mar – 14 Apr
18 Mar
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
31 May
2 Jun
1 wk before
31 May
1 wk before
Maize
Zea mays
Season too short
12 – 19 May
13 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
29 Jun
3-4 wk
11 Jun
20 Jul
0 wk
22 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
30 Jun
0 wk
9 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
5 Jun
5-7 wk
9 Jun
10 Jul
0 wk
9 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Season too short
25 Apr – 9 May
18 May
4-6 wk
6 Jun
15 Jun
0 wk
6 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
15 Jun
5-7 wk
9 Jun
20 Jul
0 wk
10 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
18 – 25 May
16 Jun
3-4 wk
15 Jun
7 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
12 – 19 May
30 May
3-4 wk
9 Jun
20 Jun
0 wk
9 Jun
10 Jun
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
17 Jun
4-6 wk
9 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
4 Jul
3-4 wk
9 Jun
25 Jul
0 wk
10 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
17 Jun
4-6 wk
9 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
26 Apr – 10 May
27 May
2-4 wk
24 May
10 Jun
2 wk before
24 May
31 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
31 May
2 Jun
1 wk before
31 May
1 wk before
Spinach
Spinacia oleracea
12 – 19 May
19 Jul
3-4 wk
9 Jun
9 Aug
0 wk
6 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
4 – 18 Jul
4-6 wk
15 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
14 – 28 Apr
22 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
12 – 26 May
18 Jun
2-4 wk
9 Jun
2 Jul
0 wk
22 Jun
22 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
17 Jun
4-6 wk
9 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
19 Jun
3-4 wk
9 Jun
10 Jul
0 wk
10 Jun
30 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
4 – 18 May
25 May
4-6 wk
15 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
15 May
8-10 wk
9 Jun
10 Jul
0 wk
4 Jul
4 wk after
Dill
Anethum graveolens
10 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
14 – 28 Apr
29 May
6-8 wk
9 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
17 Mar – 14 Apr
15 May
8-12 wk
9 Jun
10 Jul
0 wk
4 Jul
4 wk after
Coriander
Coriandrum sativum
9 Jun
9 Aug
0 wk
22 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
30 Apr
8-10 wk
11 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
5 May
8-10 wk
9 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
19 May
6-8 wk
9 Jun
30 Jun
0 wk
4 Jul
4 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
19 May
6-8 wk
9 Jun
30 Jun
0 wk
10 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
3 – 31 Mar
1 Apr
10-14 wk
9 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
Season too short
18 – 25 May
1 Jun
3-4 wk
15 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
31 Mar – 14 Apr
5 May
8-10 wk
9 Jun
30 Jun
0 wk
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
19 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
14 – 28 Apr
19 May
6-8 wk
9 Jun
30 Jun
0 wk
11 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
16 – 30 Apr
13 May
6-8 wk
11 Jun
24 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
20 Apr – 18 May
2 Jun
4-8 wk
15 Jun
30 Jun
1 wk after
15 Jun
20 Jun
1 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
22 Jun
2 wk after
Busy lizzie
Impatiens walleriana
18 Apr – 16 May
24 May
8-12 wk
11 Jul
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
20 Apr – 4 May
17 May
6-8 wk
15 Jun
28 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
31 Mar – 14 Apr
15 Apr
8-10 wk
9 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
25 Jun
0 wk
10 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
9 May
6-8 wk
9 Jun
20 Jun
0 wk
11 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
17 Mar – 14 Apr
15 Apr
8-12 wk
9 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
17 Mar – 14 Apr
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
17 Apr
8-12 wk
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
1 May
6-8 wk
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
5 May
8-12 wk
9 Jun
30 Jun
0 wk
19 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
6 – 20 Apr
15 May
8-10 wk
15 Jun
10 Jul
1 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
26 May
5-8 wk
9 Jun
30 Jun
0 wk
Stock
Matthiola incana
14 – 28 Apr
29 May
6-8 wk
9 Jun
10 Jul
0 wk
22 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
22 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
4 – 18 May
10 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
15 May
8-10 wk
9 Jun
10 Jul
0 wk
19 Jun
30 Jun
1 wk after
Petunia
Petunia
Greenhouse
17 Mar – 14 Apr
5 May
8-12 wk
9 Jun
30 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
4 Jul
4 wk after
Common zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
6 Jun
4-6 wk
9 Jun
4 Jul
0 wk
Common morning glory
Ipomoea purpurea
Season too short
11 – 25 May
1 Jun
3-5 wk
15 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
28 Apr – 12 May
2 Jun
4-6 wk
9 Jun
30 Jun
0 wk
22 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
30 Mar – 27 Apr
17 May
8-12 wk
22 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
15 Apr
8-12 wk
9 Jun
10 Jun
0 wk
4 Jul
4 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Safflower
Carthamus tinctorius
9 Jun
10 Jun
0 wk
10 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
19 May
6-8 wk
9 Jun
30 Jun
0 wk
24 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
2 Jun
4-6 wk
9 Jun
30 Jun
0 wk
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
26 Mar
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
18 – 25 May
9 Jun
3-4 wk
15 Jun
30 Jun
1 wk after
22 Jun
2 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
29 May
6-8 wk
22 Jun
10 Jul
2 wk after
22 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
17 May
6-8 wk
9 Jun
28 Jun
0 wk
4 Jul
4 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
15 Apr
8-12 wk
9 Jun
10 Jun
0 wk
4 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
20 Apr – 4 May
17 May
6-8 wk
15 Jun
28 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
19 May
6-8 wk
11 Jun
30 Jun
0 wk
22 Jul
6 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
5 Apr
8-10 wk
9 Jun
0 wk
4 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
6 Apr – 4 May
11 May
6-10 wk
15 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
6 – 20 Apr
5 May
8-10 wk
15 Jun
30 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
22 Jun
2 wk after