Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.
The first opportunity to plant watercress in Zone 7b should be determined by reviewing the USDA zone info.
Planting Calendar for Watercress
Frost tolerance for watercress: | Tolerant of a very small amount of frost. |
When to plant: | Up to 3 weeks before last frost. |
Watercress do ok in moderate cold which means that you can get them planted just a bit earlier than other plants that might not handle the cold.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
Legend | |
---|---|
A good time to plant watercress | |
Possibly ok, but a risky time to plant watercress | |
Probably not a good time to plant watercress |
The earliest that you can plant watercress in Zone 7b is March. However, you really should wait until April if you don't want to take any chances.
The last month that you can plant watercress and expect a good harvest is probably August. You probably don't want to wait any later than that or else your watercress may not have a chance to fully mature. Starting your watercress indoors is a great way to get them started a couple of weeks earlier.
Last Frost Date
In Zone 7b the average date of last frost happens on April 15. It might get as low as 5°F during the coldest months of winter.
Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Zone 7b and it is different every year. Half of the time in Zone 7b you get surprised by a frost after April 15 so always be ready to protect your watercress in the event of a late frost.
USDA Zone Info for Zone 7b
Here is the info for USDA Zone 7b.
Average Date of Last Frost (spring) | April 15 |
Average Date of First Frost (fall) | October 15 |
Lowest Expected Low | 5°F |
Highest Expected Low | 10°F |
This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.
Plants to Grow in Zone 7b
You may be interested in your other planting guides for Zone 7b.
Vegetables
- Artichokes
- Asparagus
- Asparagus lettuce
- Asparagus peas
- Beets
- Bell Peppers
- Bittercress
- Black pepper
- Black radish
- Bok Choi
- Broccoli
- Brussels Sprouts
- Bunching Onions
- Cabbage
- Cantaloupes
- Carrots
- Cauliflower
- Celeriac
- Celery
- Chard
- Chicory
- Chinese cabbage
- Chives
- Corn
- Corn salad
- Cucumbers
- Eggplants
- Endive
- Fennel
- Field Peas
- Garden cress
- Garlic
- Gherkins
- Green beans
- Hamburg root parsley
- Iceberg lettuce
- Indian cress
- Jerusalem artichokes
- Kale
- Kohlrabi
- Leeks
- Lettuce
- Melons
- Mustard greens
- Napa cabbage
- Neeps
- New Zealand spinach
- Okra
- Onions
- Parsnip
- Pea
- Peanut
- Pearl onions
- Peas
- Pole beans
- Potatos
- Pumpkins
- Purslane
- Radicchio
- Radishes
- Red cabbage
- Rhubarb
- Romaine lettuce
- Romanesco
- Runner beans
- Salsify
- Savoy cabbage
- Scallions
- Shallots
- Snap beans
- Snow peas
- Spinach
- Squash
- Strawberries
- String beans
- Sweet corn
- Sweet Potatos
- Tomatos
- Tree onions
- Turnips
- Watercress
- Watermelon
- Welsh onion
- Zucchini
Herbs
Flowers
- Abutilon
- Achillea
- Achimenes
- Aegopodium
- African Daisy
- Ageratum
- Ajuga
- Alstromeria
- Alternanthera
- Alternaria
- Alyssum
- Amaranthus
- Anagallis
- Anchusa
- Anemone
- Angelonia
- Angel's Trumpets
- Arabis
- Arctotis
- Argyranthemum
- Armeria
- Artemesia
- Asparagus Fern
- Asters
- Astilbe
- Aubretia
- Aubrieta
- Aurinia
- Axilflower
- Baby Blue Eyes
- Baby's Breath
- Bachelor Buttons
- Bacopa
- Balloon Flower
- Balsam
- Banana
- Basket of Gold
- Bee Balm
- Begonias
- Bellis
- Bells of Ireland
- Bidens
- Bishop's Weed
- Black Eyed Susans
- Bleeding Hearts
- Bloodleaf
- Blue Lace Flowers
- Blue Throatwort
- Bougainvillea
- Bower Vine
- Brachycome
- Browallia
- Brunfelsia
- Buddha belly plant
- Bunny Tails grass
- Caladium
- Calendula
- Calibrachoa
- California Poppy
- Calla Lily
- Calliopsis
- Campanula
- Candytuft
- Canna
- Cardinal Flower
- Carnation
- Catharanthus
- Celosia
- Centaurea
- Cerastium
- Chocolate Daisy
- Chrysanthemum
- Chrysanthemums
- Chrysocephalum
- Cigar Plant
- Cleome
- Clover
- Coleus
- Columbine
- Common hollyhock
- Copperleaf
- Coral Bells
- Coreopsis
- Cosmos
- Crassula
- Creeping Phlox
- Creeping Zinnia
- Crossandra
- Cuphea
- Dahlberg Daisy
- Dahlia
- Dahlias
- Dallas Fern
- Datura
- Daylily
- Decorative Kale
- Delphinium
- Dianthus
- Diascia
- Dichondra
- Didiscus
- Digitalis
- Dipladenia
- Doronicum
- Dracaena
- Dusty Miller
- Echinacea
- Elephant Ears
- English Daisy
- Erysimum
- Euphorbia
- Evolvulus
- Fanflower
- Felicia Daisy
- Festuca
- Feverfew
- Fiber Optic Grass
- Firebush
- Flax
- Flowering Kale
- Flowering Maple
- Flowering Tobacco
- Flower-of-an-Hour
- Forget-Me-Not
- Fountain Grass
- Four O' Clock
- Four-o-clock flower
- Foxglove
- Fuchsia
- Gaillardia
- Galium
- Garden Mums
- Gayfeather
- Gazania
- Geranium
- Gerbera
- Geum
- Gladiolus
- Gloriosa Daisy
- Gloriosa Lily
- Gomphrena
- Guara
- Gypsophila
- Hamelia
- Hardy Asters
- Hardy Hibiscus
- Helianthemum
- Heliotrope
- Hemerocallis
- Heuchera
- Hibiscus
- Hollyhocks
- Hosta
- Hypericum
- Iberis
- Iceland Poppy
- Impatiens
- Iresene
- Jasmine
- Lantana
- Larkspur
- Lavender
- Lavender Cotton
- Lenten Rose
- Liatris
- Lisianthus
- Lithospermum
- Livingstone Daisy
- Lobelia
- Lotus Vine
- Lunaria
- Lupine
- Lysimachia
- Maltese Cross
- Marguerite Daisy
- Marigold
- Matricaria
- Mecardonia
- Melampodium
- Mexican Feather Grass
- Millet
- Mimulus
- Missouri Primrose
- Monarda
- Money Plant
- Monkey Flower
- Moon Vine
- Morning Glory
- Myosotis
- Napa Valley Fern
- Nasturtium
- Nemesia
- Nicotiana
- Nierembergia
- Nigella
- Nolana
- Oenothera
- Oleander
- Oriental poppies
- Ornamental Grasses
- Osteospermum
- Oxalis
- Painted Daisies
- Painted Tongues
- Pampas Grass
- Pansies
- Pennisetum
- Penstemon
- Pentas
- Peonies
- Perilla
- Periwinkles
- Petunias
- Phlox
- Pincushion Flower
- Platycodon
- Plectranthus
- Polka Dot Plant
- Polygonums
- Poppies
- Portulaca
- Primroses
- Primula
- Purple Bell Vines
- Purple Coneflower
- Purple Rock Cress
- Pyrethrum
- Red Hot Pokers
- Regal Geranium
- Rock Cress
- Roses
- Ruby Grass
- Rudbeckia
- Sagina
- Salpiglossis
- Salvia
- Santolina
- Sanvitalia
- Saxifraga
- Scabiosa
- Scaevola
- Scarlet Pimpernels
- Scarlet Runner Beans
- Schizanthus
- Scutellaria
- Sedum
- Shasta Daisys
- Skullcap
- Snapdragons
- Snow-in Summer
- Statice
- Steirodiscus
- Stocks
- Stoneseed
- Strawflowers
- Streptocarpella
- Sunflowers
- Sutera
- Swan River Daisy
- Sweet Peas
- Sweet Potato Vine
- Sweet Sultan
- Sweet Williams
- Sweet Woodruff
- Tagetes
- Tall Phlox
- Thunbergia
- Tithonia
- Torch Lilys
- Torenia
- Trachelium
- Trailing Portulaca
- Transvaal Daisy
- Trifolium
- Tritoma
- Tropical Hibiscus
- Tropical Water Plants
- Twinspur
- Verbena
- Veronica
- Vinca Vine
- Violas
- Violets
- Xerianthemum
- Yarrow
- Zinnia