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Method
Rel. frost
Last spring frost (0°C) 9 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 80 days 9 Jun – 28 Aug
Probability that frost is over

25% = 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
3-4 wk
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
11 – 18 May
30 May
4-5 wk
15 Jun
27 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
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
31 May
1 wk before
31 May
1 wk before
Maize
Zea mays
Season too short
12 – 19 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
13 Jun
3-4 wk
11 Jun
4 Jul
0 wk
22 Jun
24 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
27 Jun
0 wk
9 Jun
17 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
28 Apr
4-6 wk
6 Jun
0 wk
6 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
12 Jun
5-7 wk
9 Jun
17 Jul
0 wk
10 Jun
7 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
18 – 25 May
3-4 wk
15 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
12 – 19 May
3-4 wk
9 Jun
0 wk
9 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
1 Jul
3-4 wk
9 Jun
22 Jul
0 wk
10 Jun
12 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
21 May
2-4 wk
24 May
4 Jun
2 wk before
24 May
25 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
31 May
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
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
12 – 26 May
2-4 wk
9 Jun
0 wk
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
16 Jun
3-4 wk
9 Jun
7 Jul
0 wk
10 Jun
27 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
4-6 wk
15 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
12 May
8-10 wk
9 Jun
7 Jul
0 wk
4 Jul
4 wk after
Dill
Anethum graveolens
10 Jun
4 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
24 Jul
0 wk
22 Jun
14 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
Greenhouse
3 – 31 Mar
31 Mar
10-14 wk
9 Jun
9 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
3-4 wk
15 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
16 Apr
8-10 wk
9 Jun
11 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
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
11 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
20 Apr – 18 May
18 May
4-8 wk
15 Jun
15 Jun
1 wk after
15 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
Greenhouse
23 Mar – 20 Apr
2 Jun
8-12 wk
15 Jun
28 Jul
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
0 wk
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
12 Apr
8-10 wk
9 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
22 Jun
0 wk
10 Jun
12 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
20 Apr
6-8 wk
9 Jun
0 wk
11 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
17 Mar – 14 Apr
12 Apr
8-12 wk
9 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
6-8 wk
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
7 Jul
0 wk
10 Jun
27 Jun
0 wk
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
2 May
8-12 wk
9 Jun
27 Jun
0 wk
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Season too short
6 – 20 Apr
26 Apr
8-10 wk
15 Jun
21 Jun
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
26 May
6-8 wk
9 Jun
7 Jul
0 wk
22 Jun
27 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
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
16 Apr
8-12 wk
9 Jun
11 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
0 wk
4 Jul
4 wk after
Common zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
15 May
4-6 wk
9 Jun
12 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
11 – 25 May
3-5 wk
15 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
28 Apr – 12 May
18 May
4-6 wk
9 Jun
15 Jun
0 wk
22 Jun
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
30 Mar – 27 Apr
8-12 wk
22 Jun
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
12 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
Yarrow
Achillea millefolium
Greenhouse
14 – 28 Apr
6-8 wk
9 Jun
0 wk
9 Jun
0 wk
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
30 May
4-6 wk
9 Jun
27 Jun
0 wk
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
Greenhouse
12 – 19 May
8 Jun
3-4 wk
9 Jun
29 Jun
0 wk
15 Jun
19 Jun
1 wk after
China aster
Callistephus chinensis
Fleece
20 Apr – 4 May
18 May
6-8 wk
15 Jun
29 Jun
1 wk after
4 Jul
4 wk after
Annual phlox
Phlox drummondii
Greenhouse
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
0 wk
22 Jun
2 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
12 Apr
8-12 wk
9 Jun
0 wk
4 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
Fleece
14 – 28 Apr
8 May
6-8 wk
9 Jun
19 Jun
0 wk
4 Jul
4 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
2 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
6-10 wk
15 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
29 Jun
0 wk
10 Jun
19 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Greenhouse
31 Mar – 14 Apr
2 May
8-10 wk
9 Jun
27 Jun
0 wk
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