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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 84 days 4 Jun – 27 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)
16 – 30 Apr
15 Jun
5-7 wk
4 Jun
20 Jul
0 wk
8 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
27 Jun
4-6 wk
4 Jun
25 Jul
0 wk
8 Jun
15 Jul
1 wk after
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
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
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
21 May
4-5 wk
17 Jun
18 Jun
2 wk after
9 Jul
5 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)
Season too short
12 Mar – 9 Apr
22 Mar
8-12 wk
4 Jun
0 wk
4 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
8 Jun
1 wk after
8 Jun
1 wk after
Maize
Zea mays
Greenhouse
7 – 14 May
3-4 wk
4 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
17 Jun
3-4 wk
6 Jun
8 Jul
0 wk
25 Jun
28 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
30 Jun
0 wk
4 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
10 Jun
5-7 wk
4 Jun
15 Jul
0 wk
4 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
9 – 23 May
4-6 wk
20 Jun
2 wk after
20 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
15 Jun
5-7 wk
4 Jun
20 Jul
0 wk
8 Jun
10 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
13 – 20 May
14 Jun
3-4 wk
10 Jun
5 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
3-4 wk
6 Jun
0 wk
25 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
4 Jul
3-4 wk
4 Jun
25 Jul
0 wk
8 Jun
15 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
13 May
2-4 wk
4 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Jun
1 wk after
8 Jun
1 wk after
Spinach
Spinacia oleracea
7 – 14 May
24 Jul
3-4 wk
4 Jun
14 Aug
0 wk
31 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
6 – 20 Jul
4-6 wk
17 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
9 – 23 Apr
9 Apr
6-8 wk
4 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
7 – 21 May
16 Jun
2-4 wk
4 Jun
30 Jun
0 wk
25 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
22 Jun
4-6 wk
4 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
19 Jun
3-4 wk
4 Jun
10 Jul
0 wk
8 Jun
30 Jun
1 wk after

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