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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 121 days 4 Jun – 3 Oct
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)
16 – 30 Apr
18 Jun
5-7 wk
4 Jun
23 Jul
0 wk
28 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
30 Jun
4-6 wk
4 Jun
28 Jul
0 wk
28 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
13 Jun
5-7 wk
4 Jun
18 Jul
0 wk
23 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Season too short
13 – 20 May
3-4 wk
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
13 – 20 May
10 Jun
4-5 wk
17 Jun
8 Jul
2 wk after
25 Jun
28 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
12 Mar – 9 Apr
31 Mar
8-12 wk
4 Jun
0 wk
14 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
15 Jun
1 wk before
28 May
5 Jun
1 wk before
Maize
Zea mays
Season too short
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
7 Jul
3-4 wk
6 Jun
28 Jul
0 wk
14 Jun
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
8 Jul
0 wk
23 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
13 Jun
5-7 wk
4 Jun
18 Jul
0 wk
23 May
8 Jul
2 wk before
Potato
Solanum tuberosum
28 Apr – 12 May
16 May
4-6 wk
9 Jun
13 Jun
1 wk after
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
23 Jun
5-7 wk
4 Jun
28 Jul
0 wk
28 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
23 May
3-4 wk
10 Jun
13 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
17 May
3-4 wk
6 Jun
7 Jun
0 wk
14 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
25 Jun
4-6 wk
4 Jun
23 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
12 Jul
3-4 wk
4 Jun
2 Aug
0 wk
28 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
25 Jun
4-6 wk
4 Jun
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Apr – 9 May
2 Jun
2-4 wk
23 May
16 Jun
2 wk before
23 May
6 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
15 Jun
1 wk before
28 May
5 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 May
27 Jul
3-4 wk
4 Jun
17 Aug
0 wk
17 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jul
4-6 wk
12 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
9 – 23 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
7 – 21 May
25 May
2-4 wk
4 Jun
8 Jun
0 wk
14 Jun
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
25 Jun
4-6 wk
4 Jun
23 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
27 Jun
3-4 wk
4 Jun
18 Jul
0 wk
28 May
8 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Greenhouse
29 Apr – 13 May
1 May
4-6 wk
10 Jun
1 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
23 May
8-10 wk
4 Jun
18 Jul
0 wk
25 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
28 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
9 – 23 Apr
6 Jun
6-8 wk
4 Jun
18 Jul
0 wk
28 May
8 Jul
1 wk before
Spearmint
Mentha spicata
12 Mar – 9 Apr
23 May
8-12 wk
4 Jun
18 Jul
0 wk
25 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
4 Jun
17 Aug
0 wk
14 Jun
7 Aug
1 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
8 May
8-10 wk
6 Jun
3 Jul
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
13 May
8-10 wk
4 Jun
8 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
0 wk
25 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
0 wk
28 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
28 Feb – 28 Mar
9 Apr
10-14 wk
6 Jun
18 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
13 – 20 May
3-4 wk
10 Jun
1 wk after
Cornflower
Centaurea cyanus
4 Jun
18 Jul
0 wk
28 May
8 Jul
1 wk before
Statice
Limonium sinuatum
Fleece
1 – 15 Apr
12 Apr
8-10 wk
10 Jun
1 wk after
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
9 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
15 – 29 Apr
26 Apr
6-8 wk
10 Jun
1 wk after
20 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
11 – 25 Apr
30 Apr
6-8 wk
6 Jun
11 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
8 Apr – 6 May
30 May
4-8 wk
3 Jun
27 Jun
0 wk
3 Jun
17 Jun
0 wk
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
14 Jun
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
25 Mar – 22 Apr
19 May
8-12 wk
17 Jun
14 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Apr
6 May
6-8 wk
10 Jun
17 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
28 Mar – 11 Apr
23 Apr
8-10 wk
6 Jun
18 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
3 Jul
0 wk
28 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Apr
16 Apr
6-8 wk
10 Jun
1 wk after
20 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
23 Apr
8-12 wk
6 Jun
18 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
24 Mar
8-12 wk
10 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
18 Mar – 15 Apr
24 Mar
8-12 wk
10 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
15 – 29 Apr
6-8 wk
10 Jun
1 wk after
Corn poppy
Papaver rhoeas
4 Jun
18 Jul
0 wk
28 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
13 May
8-12 wk
4 Jun
8 Jul
0 wk
9 Jun
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
8 – 22 Apr
22 Apr
8-10 wk
17 Jun
17 Jun
2 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
3 Jun
5-8 wk
4 Jun
8 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
6 Jun
6-8 wk
4 Jun
18 Jul
0 wk
14 Jun
8 Jul
1 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
7 May
6-8 wk
4 Jun
18 Jun
0 wk
14 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
23 May
8-10 wk
4 Jun
18 Jul
0 wk
9 Jun
8 Jul
1 wk after
Petunia
Petunia
Fleece
18 Mar – 15 Apr
12 Apr
8-12 wk
10 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
7 May
6-8 wk
6 Jun
18 Jun
0 wk
10 Jul
5 wk after
Common zinnia
Zinnia elegans
Fleece
29 Apr – 13 May
1 May
4-6 wk
10 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
6 – 20 May
8 May
3-5 wk
10 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
29 Apr – 13 May
14 May
4-6 wk
10 Jun
11 Jun
1 wk after
25 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
25 Mar – 22 Apr
23 Apr
8-12 wk
17 Jun
18 Jun
2 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
23 Apr
8-12 wk
4 Jun
18 Jun
0 wk
25 Jun
3 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
14 Jun
1 wk after
Safflower
Carthamus tinctorius
4 Jun
18 Jun
0 wk
28 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
0 wk
26 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
10 Jun
4-6 wk
4 Jun
8 Jul
0 wk
14 Jun
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Mar – 1 Apr
10-12 wk
10 Jun
1 wk after
Sunflower
Helianthus annuus
20 – 27 May
17 Jun
3-4 wk
17 Jun
8 Jul
2 wk after
25 Jun
28 Jun
3 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
6 Jun
6-8 wk
17 Jun
18 Jul
2 wk after
10 Jul
5 wk after
Annual phlox
Phlox drummondii
Fleece
9 – 23 Apr
6 May
6-8 wk
4 Jun
17 Jun
0 wk
25 Jun
3 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
14 Jun
1 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
23 Apr
8-12 wk
4 Jun
18 Jun
0 wk
25 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Apr
6 May
6-8 wk
10 Jun
17 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
27 May
6-8 wk
6 Jun
8 Jul
0 wk
10 Jul
5 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
13 Apr
8-10 wk
4 Jun
8 Jun
0 wk
25 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
1 – 29 Apr
17 Apr
6-10 wk
10 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
18 Jul
0 wk
28 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
7 May
8-10 wk
17 Jun
2 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
7 May
6-8 wk
4 Jun
18 Jun
0 wk
14 Jun
1 wk after