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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 112 days 11 May – 31 Aug
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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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
18 May
4-5 wk
7 Jun
15 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
14 Mar
8-12 wk
11 May
0 wk
1 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
15 May
29 May
1 wk after
15 May
19 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
14 Jun
3-4 wk
19 May
5 Jul
1 wk after
1 Jun
25 Jun
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 May
25 Jun
0 wk
11 May
15 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
10 Jun
5-7 wk
11 May
15 Jul
0 wk
15 May
5 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
16 May
3-4 wk
19 May
6 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
29 Jun
3-4 wk
11 May
20 Jul
0 wk
15 May
10 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
29 May
1 wk after
15 May
19 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
14 Jun
3-4 wk
11 May
5 Jul
0 wk
15 May
25 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
Season too short
14 – 28 Apr
4-6 wk
26 May
2 wk after
Lemon balm
Melissa officinalis
2 – 16 Mar
10 May
8-10 wk
11 May
5 Jul
0 wk
15 Jun
25 Jun
5 wk after
Dill
Anethum graveolens
15 May
5 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
25 Jul
0 wk
1 Jun
15 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
13 Mar
10-14 wk
19 May
22 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
Season too short
3 – 17 Mar
8 Mar
8-10 wk
12 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
Season too short
17 – 31 Mar
22 Mar
6-8 wk
12 May
0 wk
21 Jun
6 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
16 – 30 Mar
13 Apr
6-8 wk
11 May
25 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
26 Mar – 23 Apr
27 Apr
4-8 wk
21 May
25 May
1 wk after
21 May
1 wk after
Foxglove
Digitalis purpurea
2 – 16 Mar
8-10 wk
11 May
0 wk
1 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
15 Mar – 12 Apr
28 Mar
8-12 wk
7 Jun
4 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
17 – 31 Mar
1 Apr
6-8 wk
12 May
13 May
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
31 Mar
8-10 wk
19 May
26 May
1 wk after
Love in a mist
Nigella damascena
11 May
20 Jun
0 wk
15 May
10 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Season too short
17 – 31 Mar
6-8 wk
12 May
0 wk
21 Jun
6 wk after
Purple-top vervain
Verbena bonariensis
24 Feb – 24 Mar
31 Mar
8-12 wk
19 May
26 May
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
17 Feb – 17 Mar
20 Mar
8-12 wk
12 May
15 May
0 wk
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
5 Jul
0 wk
15 May
25 Jun
1 wk after
Snapdragon
Antirrhinum majus
16 Feb – 16 Mar
30 Apr
8-12 wk
11 May
25 Jun
0 wk
27 May
15 Jun
2 wk after
Flossflower
Ageratum houstonianum
Season too short
17 – 31 Mar
18 Mar
8-10 wk
26 May
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
24 May
6-8 wk
11 May
5 Jul
0 wk
1 Jun
25 Jun
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
Season too short
17 Feb – 17 Mar
8 Mar
8-12 wk
12 May
0 wk
Sweet Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
14 Apr
6-8 wk
19 May
26 May
1 wk after
29 Jun
7 wk after
Common zinnia
Zinnia elegans
Season too short
31 Mar – 14 Apr
4-6 wk
12 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
Greenhouse
31 Mar – 14 Apr
27 Apr
4-6 wk
12 May
25 May
0 wk
1 Jun
3 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
10 Apr
8-12 wk
11 May
5 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
28 May
4-6 wk
11 May
25 Jun
0 wk
1 Jun
15 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
21 May
3-4 wk
7 Jun
11 Jun
4 wk after
15 Jun
5 wk after
China aster
Callistephus chinensis
12 – 26 Apr
10 May
6-8 wk
7 Jun
21 Jun
4 wk after
29 Jun
7 wk after
Annual phlox
Phlox drummondii
Greenhouse
16 – 30 Mar
1 Apr
6-8 wk
11 May
13 May
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
10 Apr
8-12 wk
11 May
5 Jun
0 wk
15 Jun
5 wk after
African marigold
Tagetes erecta
Greenhouse
17 – 31 Mar
1 Apr
6-8 wk
12 May
13 May
0 wk
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
30 Apr
6-8 wk
19 May
11 Jun
1 wk after
29 Jun
7 wk after
Wood sage
Salvia nemorosa
2 – 16 Mar
31 Mar
8-10 wk
11 May
26 May
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
29 Jun
0 wk
15 May
19 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
29 Mar – 12 Apr
1 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