Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Brassicaceae
Native
Probably Eurasia
Life Cycle
Annual
Plant Height
Medium (12" - 24")
Further Information
Plant Characteristics
Good for Containers
Growing Conditions
- Frost Tolerant
- Heat Tolerant
About Spinach
Brassica rapa subsp. nipposinica
Smooth dark green, glossy leaves with thin, lighter green midribs and milder flavor than true mustards. Flowers, stalks, and buds are also edible. Slow to bolt and is heat and cold tolerant.
Planting Spinach
Plant Spacing
A group of 3 seeds every 4" – 6"
Light Required
Full sun to part shade
Plant Height
Medium (12" - 24")
Planting Depth
¼"
Coverage & Planting Details
| Coverage | This packet sows up to 200 feet. |
|---|---|
| Row Spacing | 12"–18" |
| Seed Depth | ¼" |
| Seed Spacing | A group of 3 seeds every 4" – 6" |
| Thinning | When 3" tall, thin to 1 every 4" – 6" |
| Germination | 5–10 days |
| Start Indoors | Not recommended; transplant stress can cause plants to bolt (prematurely flower). |
| Direct Sow | RECOMMENDED. 4 to 6 weeks before your average last frost date, when soil temperature is at least 40°F, ideally 60°–75°F. Successive Sowings: Every 3 weeks until 10 to 12 weeks before your average first fall frost date for continuous harvest. Mild Climates: Sow in late fall through winter for cool–season harvest. |
| Growing & Harvesting | Harvest in the morning if possible. You may start harvesting leaves when they are 2" tall, as needed; remove no more than 1/3 of the plant if regrowth is desired, or let plant grow to maturity and harvest entire plant. Late summer crops will last until the first hard freeze. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
Send Your Recommendation
Total 5 star reviews: 10 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
Search
Rating
Which best describes you as a gardener?
11 reviews
- Deborah G.Verified BuyerRated 5 out of 5 stars11/21/25Greens for my fall garden
These greens were new to me. I always like to try something new when I plant a garden.
These greens are huge, thriving, long-lasting, and delicious when sauteed lightly.
Every time we have these for supper my husband says he can taste the vitamins.
Which best describes you as a gardener? ExpertBIBotanical Interests11/24/25Hey Deborah,
Thank you so much for taking the time to share your experience with our Tendergreen Mustard Spinach Seeds! We love hearing that you're always up for trying something new in the garden and that these greens turned out to be such a hit with their huge size and long-lasting harvest. We love your husband's comment about tasting the vitamins! It's so true! It sounds like these will definitely be making a return appearance in your future fall gardens. Thanks for sharing your growing success with us. Keep on growing 🌻️
- NiaRated 5 out of 5 stars3/5/255 Stars
ZONE 9B in Houston, TX. See photo on left. I harvested thru winter and early spring. I only pulled them b/c needed more space for starting summer garden. Nice flavor between spinach & mustard. Fast growing. cut as needed to drop in Asian noodle soups. they don't look like pic on packaging. I will keep growing these. I recommend.
- Stephanie H.Verified BuyerRated 5 out of 5 stars7/12/245 Stars
This is the best spinach to grow hydroponically! Best size, texture and flavor! My go-to!
- Roger S.Verified BuyerRated 5 out of 5 stars2/27/245 Stars
I grow in the desert and am not a representative buyer of your products but have been pleased with most varieties tried so far.
- Katie B.Rated 5 out of 5 stars2/25/245 Stars
I loved these mustard spinach seeds. I grew a few plants all through fall and winter in Houston. I had a constant supply of leaves for my sandwiches and wraps, and once they started bolting I decided to let them go until spring.
Not only were the leaves delicious, when the plant flowered it attracted dozens of bees!