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Frost is lingering Last frost normally 11 May, The 10-day forecast shows frost Tue.
Method
Rel. frost
Last spring frost (0°C) 11 May Frost 9 of 10 years · 20 years of data
Frost-free season 113 days 11 May – 1 Sep
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)
23 Mar – 6 Apr
14 Jun
5-7 wk
11 May
19 Jul
0 wk
15 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
30 Mar – 13 Apr
26 Jun
4-6 wk
11 May
24 Jul
0 wk
15 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
3 – 31 Mar
8-12 wk
26 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
23 Mar – 6 Apr
9 Jun
5-7 wk
11 May
14 Jul
0 wk
11 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
28 Apr – 5 May
3-4 wk
26 May
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
3 – 10 May
23 May
4-5 wk
7 Jun
20 Jun
4 wk after
15 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
7 wk after
Onion
Allium cepa (Cepa-gruppen)
16 Feb – 16 Mar
13 Mar
8-12 wk
11 May
0 wk
1 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
28 May
1 wk after
15 May
18 May
1 wk after
Maize
Zea mays
Season too short
14 – 21 Apr
3-4 wk
12 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
19 Jun
3-4 wk
19 May
10 Jul
1 wk after
1 Jun
30 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 May
3 Jul
0 wk
11 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
23 Mar – 6 Apr
9 Jun
5-7 wk
11 May
14 Jul
0 wk
11 May
4 Jul
0 wk
Potato
Solanum tuberosum
15 – 29 Apr
13 May
4-6 wk
27 May
10 Jun
2 wk after
27 May
31 May
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Mar – 6 Apr
18 Jun
5-7 wk
11 May
23 Jul
0 wk
15 May
13 Jul
1 wk after
Pumpkin
Cucurbita pepo
Season too short
28 Apr – 5 May
3-4 wk
26 May
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
17 May
3-4 wk
19 May
7 Jun
1 wk after
1 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
30 Mar – 13 Apr
21 Jun
4-6 wk
11 May
19 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 Apr
7 Jul
3-4 wk
11 May
28 Jul
0 wk
15 May
18 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
30 Mar – 13 Apr
21 Jun
4-6 wk
11 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 Apr
17 May
2-4 wk
11 May
31 May
0 wk
11 May
21 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 May
28 May
1 wk after
15 May
18 May
1 wk after
Spinach
Spinacia oleracea
13 – 20 Apr
23 Jul
3-4 wk
11 May
13 Aug
0 wk
7 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
12 – 26 Jun
4-6 wk
24 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
17 – 31 Mar
6-8 wk
12 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
14 – 28 Apr
2-4 wk
12 May
0 wk
1 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
30 Mar – 13 Apr
21 Jun
4-6 wk
11 May
19 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 Apr
22 Jun
3-4 wk
11 May
13 Jul
0 wk
15 May
3 Jul
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
Season too short
14 – 28 Apr
4-6 wk
26 May
2 wk after
Lemon balm
Melissa officinalis
2 – 16 Mar
18 May
8-10 wk
11 May
13 Jul
0 wk
15 Jun
3 Jul
5 wk after
Dill
Anethum graveolens
15 May
10 Jul
1 wk after
Wild chives
Allium schoenoprasum
16 – 30 Mar
2 Jun
6-8 wk
11 May
14 Jul
0 wk
15 May
4 Jul
1 wk after
Spearmint
Mentha spicata
16 Feb – 16 Mar
19 May
8-12 wk
11 May
14 Jul
0 wk
15 Jun
4 Jul
5 wk after
Coriander
Coriandrum sativum
11 May
30 Jul
0 wk
1 Jun
20 Jul
3 wk after
Garden sage
Salvia officinalis
10 – 24 Mar
4 May
8-10 wk
19 May
29 Jun
1 wk after
Common thyme
Thymus vulgaris
2 – 16 Mar
9 May
8-10 wk
11 May
4 Jul
0 wk
Oregano
Origanum vulgare
16 – 30 Mar
23 May
6-8 wk
11 May
4 Jul
0 wk
15 Jun
24 Jun
5 wk after
Parsley
Petroselinum crispum
16 – 30 Mar
23 May
6-8 wk
11 May
4 Jul
0 wk
15 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
22 Mar
10-14 wk
19 May
31 May
1 wk after

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