Black Beauty Zucchini Squash, 1957 variety, Organic
$3.55
$4.00
Dark and glossy zuchinnis have become the main zuchinni sold and grown in the U.S. Black Beauty hails from my childhood state of Connecticut. This was developed by John Scarchuk. The plants remain somewhat compact and provide loads of zuchinnis. This particular variety is best picked with 6-8" long. 45-65 days. We source this from multiple places inlcuding Seedsavers Exchange, Southern Exposure, or High Mowing but the seed is always organic. Botanical Name: Cucurbita pepo
Characteristics:
Organic
Glossy, green-black skin
Best when eaten under 8 inches
Excellent variety for freezing
Summer squash
45-65 days
~20 seeds per packet
Instructions - Sow seeds outdoors in 12" diameter hills after danger of frost has passed. Hills should be spaced 6' apart in all directions. Can also be started indoors 3 weeks before transplanting out.
Plant 1/2" deep
Hill 6-8 seeds together
Thin to 3-4 plants
Firefly Farm & Mercantile may substitute based on supplier availability
Cocozelle Zucchini, Organic
$3.50
$3.90
Productive, tasty Italian variety with attractively striped fruits.
High Mowing Organic Seeds - Dark and light green striping is less defined than Costata Romanesco. The flavor is slightly nutty; milder than Costata but more flavorful than most zucchini. Straight fruit with very slight ribbing over the lighter green striping.
Characteristics:
Organic, non-GMO, and open-pollinated
Bush habit
Uniform shape
Harvest at 6-8"
58 days
1/8 oz
Instructions - Plants need loose, fertile, well-drained soil with plenty of nitrogen and a pH of 5.8-6.8. Fertilize seedlings with fish emulsion if leaves are yellow. Days to maturity are from direct seeding. The optimum soil temperature for germination is about 85ºF.
Plant 1/2-1" deep
Plant Spacing: 12-24"
Row Spacing: 5-6'
Firefly Farm & Mercantile may substitute based on supplier availability
Costata Romanesco Zucchini, 1600's Heirloom
$3.75
$4.00
Costata Romanesco Zucchini, 1600's Heirloom and a Firefly Favorite - A favorite of ours! This squash or zucchini thrives all across America. It doesn't seem to be plagued my mildew and it is not bothered by bugs, it just keeps producing all summer long. A lighter speckled green zuchinni with ribbed edges. We enjoy harvesting at almost all sizes from 6" to 12" long. This a zuchinni that we actually plant twice as we cannot get enough of it. We source from various companies to keep this one on our shelf.
Male flowers are edible and delicious!
Heirloom, Open Pollinated and always Non-GMO
Ribbed, Speckled skin
Best when eaten under 6"
Summer squash
50-60 days
~20 Seeds
Instructions - Sow seeds outdoors in 12" diameter hills after danger of frost has passed. Hills should be spaced 6' apart in all directions. Can also be started indoors 3 weeks before transplanting out.
Plant 1/2" deep
Hill 6-8 seeds together
Thin to 3-4 plants
Firefly Farm & Mercantile may substitute based on supplier availability
Dark Green Zucchini, Organic
$3.50
High Mowing Organic Seeds - Vigorous variety produces good yields of straight, smooth fruits.
An open-pollinated variety best suited to the home garden, with abundant yields of lightly mottled dark green fruits. Pale greenish-white, firm flesh.
Characteristics:
Organic, non-GMO, and open-pollinated
Harvest at 6-8"
Bush-type habit
Instructions - Plants need loose, fertile, well-drained soil with plenty of nitrogen and a pH of 5.8-6.8. Fertilize seedlings with fish emulsion if the leaves are yellow. Days to maturity are from direct seeding, subtract 2 weeks if transplanting. Direct seed as soon as the chance of all frost has passed or start transplants 3-4 weeks before the planting date. The optimum soil temperature for germination is about 85ºF. Many growers plant multiple successions of summer squash during a season to ensure a continuous harvest, transplanting the first succession immediately after a frost-free day and the final succession three months before the expected first frost.
Plant 1/2-1" deep
Plant Spacing: 12-24"
Row Spacing: 5-6'
Harvest & Storage: Best quality fruit is harvested at 5 – 8” or smaller, while skin is soft and somewhat glossy. Harvest fruits every other day to for the best size and quality and to maintain plants’ productivity. Fruits are very perishable but will store for 3 to 4 days at 35 - 40ºF and 90% relative humidity.
Firefly Farm & Mercantile may substitute seed vendors from time to time because of the availability
Golden Zucchini Squash, Organic
$3.75
$3.95
The Seed Savers Exchange - (C. pepo) Introduced in 1973 by W. Atlee Burpee of Philadelphia, bred from genetic material supplied by Dr. Oved Shifress. This vivid yellow fruit was the first commercial B (bicolor gene) cultivar. Crisp and mild-flavored zucchinis are borne prolifically on bush plants. 50-55 days.
Characteristics:
Organic
Bright yellow skin
Best when eaten under 8 inches
Heavy yielding bush plants
Summer squash
50-55 days
25 seeds per packet
Instructions - Sow seeds outdoors in 12" diameter hills after danger of frost has passed. Hills should be spaced 6' apart in all directions. Can also be started indoors 3 weeks before transplanting out.
Plant 1/2" deep
Hill 6-8 seeds together
Thin to 3-4 plants
Firefly Farm & Mercantile may substitute based on supplier availability
Ronde de Nice Summer Squash Zucchini, Organic, 1800's Heirloom
$3.75
$4.39
This is our favorite zucchini. The skins are tender, they are perfect for grilling, roasting, and stuffing. We have to source them differently each year but we strive for organic.
Perfectly spherical light green fruits with white speckling - a unique specialty item! Heirloom from southern France with a nice nutty flavor and great texture for fresh eating or freezing. Round shape and small size make this variety perfect for stuffing!
Characteristics:
Organic, non-GMO, and open-pollinated
Specialty crop
Harvest at 3-5" diameter
Bush-type habit
Heirloom
Instructions - Plants need loose, fertile, well-drained soil with plenty of nitrogen and a pH of 5.8-6.8. Fertilize seedlings with fish emulsion if the leaves are yellow. Days to maturity are from direct seeding, subtract 2 weeks if transplanting. Direct seed as soon as the chance of all frost has passed or start transplants 3-4 weeks before the planting date. The optimum soil temperature for germination is about 85ºF. Many growers plant multiple successions of summer squash during a season to ensure a continuous harvest, transplanting the first succession immediately after a frost-free day and the final succession three months before the expected first frost.
Plant 1/2-1" deep
Plant Spacing: 12-24"
Row Spacing: 5-6'
Harvest & Storage: Best quality fruit is harvested at 5 – 8” or smaller, while skin is soft and somewhat glossy. Harvest fruits every other day to for the best size and quality and to maintain plants’ productivity. Fruits are very perishable but will store for 3 to 4 days at 35 - 40ºF and 90% relative humidity.
Firefly Farm & Mercantile may substitute seed vendors from time to time because of the availability
Stardust Zucchini, Organic
$3.50
$3.90
High Mowing Organic Seeds - Large, productive plants with beautiful, medium to dark green fruit.
One of our most uniform open pollinated zucchinis in fruit shape and color, plants produce abundantly on short stems. Leaves are large and variegated and fruit are covered in beautiful tiny flecks of contrasting color with defined, attractive ridges.
Productive
Variegated leaves
Harvest at 6-9"
Open-Pollinated
1/8 oz seeds
Instructions
Plants need loose, fertile, well-drained soil with plenty of nitrogen and a pH of 5.8-6.8. Fertilize seedlings with fish emulsion if the leaves are yellow.
Days to maturity are from direct seeding, subtract 2 weeks if transplanting. Direct seed as soon as the chance of all frost has passed or start transplants 3-4 weeks before the planting date. The optimum soil temperature for germination is about 85ºF.
Many growers plant multiple successions of summer squash during a season to ensure a continuous harvest, transplanting the first succession immediately after a frost-free day and the final succession three months before the expected first frost.
Plant 1/2-1" deep
Plant Spacing: 12-24"
Row Spacing:
5-6'
Harvest & Storage:
Best quality fruit is harvested at 5 – 8” or smaller, while skin is soft and somewhat glossy. Harvest fruits every other day to for the best size and quality and to maintain plants’ productivity.
Fruits are very perishable but will store for 3 to 4 days at 35 - 40ºF and 90% relative humidity.
Firefly Farm & Mercantile may substitute seed vendors from time to time because of the availability
Summer Zucchini Ortolana di Faenza Squash, Heirloom, Organic
from $1.50
$3.25
Renee's Garden - Italian heirloom yields nicely shaped, light green fruits you’ll find meltingly tender, custardy, and delicious–never watery or mushy. Early bearing vines with marbled leaves.
Characteristics:
Organic
Heirloom
Light green color
Tender texture
A delicate and nutty flavor
40 days
Approx 35 seeds
Instructions - Zucchinis need full sun, rich fertile soil, and warm temperatures. Plant only when spring weather is warm and night temperatures stay above 50°F (10°C). Sow groups of 2 to 3 seeds,1 inch deep, every 2 feet, in rows 3 feet apart. Thin to leave only 1 seedling every 2 feet. Or, plant in slightly mounded hills, 2 feet in diameter, sowing 5 or 6 seeds in each hill. Thin hill-planted seedlings to 2 or 3 strongest plants.
Plant In: May - June for cold winters and April - June for mild winters
Full Sun
Plant 2 feet apart
7-10 days to germinate
Firefly Farm & Mercantile may substitute suppliers due to availability.
Zucchetta Rampicanta Squash, pre-1850 Italian Heirloom, Organic Zucchini
$3.75
$4.25
Seedsaver Exchange - This marvelous Italian heirloom delivers both in the garden and on the plate! Highly productive plants bear plenty of long, slender, curved fruits that wrap around vines, trellises, and sometimes one another. Squash measures 2-3" in diameter, widening to 4-5" at the bulbous blossom end and weighing from 5-8 pounds at maturity. ‘Zucchetta Rampicante’ excels as a summer squash—it’s tender, mild, and sweet—but has also long been used in Italy as a winter squash in pies, ravioli, and gnocchi. Immature fruits are pale green with white streaks; mature squash are tan with white streaks.
Seed Savers Exchange received this variety in the early 2000s from Jaime Poris, an Exchange lister in Boulder Creek, California, who had purchased the variety in 1990 from R.H. Shumway.
Characteristics:
Organic
Summer or winter squash
Highly Productive
From the Collection, 2025
20 seeds per packet
Instructions - Sow seeds outdoors in 12" diameter hills after danger of frost has passed. Hills should be spaced 6' apart in all directions. Can also be started indoors 3 weeks before transplanting out.
Plant 1/2" deep
Hill 6-8 seeds together
Thin to 3-4 plants
Firefly Farm & Mercantile may substitute based on supplier availability