Success PM Straightneck Summer Squash
Best disease-resistant squash for gardeners seeking a long, reliable harvest.
Discover the Success PM Straightneck Summer Squash, an exceptional open-pollinated variety developed in partnership with High Mowing Organic Seeds and Cornell's Vegetable Breeding Institute. This squash is celebrated for its prolific and disease-resistant plants, consistently yielding smooth, uniform fruits. Enjoy an abundant harvest for over three months thanks to its reliable bush-type habit and high resistance to Powdery Mildew. For optimal quality, harvest fruits when they reach 6 to 7 inches, ensuring a successful and continuous yield throughout the growing season.
$4.15
Owner Satisfaction
4.8
/ 5
Category Rank
2
/ 5592
#2 in Seeds & Seed Tape
Price vs Category Average
-61%
Below average
Days to Maturity
50
/ days
Who it's for
- Organic gardeners seeking low-maintenance, disease-resistant summer crops
- Market growers and home cooks prioritizing consistent, uniform produce
- Impatient gardeners wanting fast, high-volume summer harvests
Who should skip it
- Busy gardeners unable to commit to frequent, daily harvesting
- Gardeners in regions with high squash vine borer pressure
- Budget-conscious growers looking for inexpensive, non-organic seed options
Performance breakdown
Disease Resistance
Exceptional Powdery Mildew resistance keeps plants healthy throughout the growing season.
Harvest Duration
Reliable bush-type habit provides a steady supply for over three months.
Yield Consistency
Produces uniform, high-quality fruits that meet professional market standards.
Growth Efficiency
Rapid 50-day maturity allows for quick turnaround in the garden.
Plant Manageability
Compact bush habit fits well in smaller garden footprints.
Genetic Reliability
Open-pollinated breeding ensures stable performance across diverse growing environments.
Key Specs
Days to Maturity
50 days
Seeding Depth
½-1”
Plant Spacing
12-24”
Row Spacing
5-6'
Seed Count
262-375 seeds/oz (280 avg)
Soil pH Requirement
5.8-6.8
Harvest Size
5 – 8” or smaller
Storage Life
3 to 4 days at 35 - 40ºF
Features
- Prolific, disease-resistant plants
- Over three months of harvest
- High resistance to Powdery Mildew
- Smooth, uniform fruit
- Bush-type growth habit
- Open-pollinated variety
- Reliable yield
What customers say
Customers highly value the Success PM Straightneck Summer Squash for its exceptional reliability and robust performance. The standout feature is its strong resistance to Powdery Mildew, allowing plants to produce healthy fruit long after other varieties fail. This significantly extends the harvest window for all growers. Germination rates are consistently excellent, ensuring vigorous starts. Furthermore, the resulting squash is praised for its uniform straightness, firmness, and classic summer squash flavor, making it appealing for both home and market use. The combination of high yield, reduced disease management, and dependable results delivers outstanding value, cementing this variety as a top choice for organic cultivation.
Know before you buy
The Success PM Straightneck is known for its extended production window, providing a reliable harvest for over three months when managed correctly.
For the best flavor and texture, harvest the fruits when they reach 6 to 7 inches in length. While they can be picked between 5 and 8 inches, harvesting at the smaller end of that range ensures the highest quality.
You should space your plants 12 to 24 inches apart. If you are planting in rows, ensure there is 5 to 6 feet of space between each row to allow for proper airflow and growth.
This squash was specifically developed with high resistance to Powdery Mildew, which is a common issue for summer squash. While it is highly resilient, maintaining consistent watering and full sun exposure will help keep the plants healthy throughout the season.
This variety matures relatively quickly, with a typical timeframe of 50 days from planting to the first harvest.
It features a bush-type growth habit, meaning it grows in a compact, manageable form rather than sprawling like vining varieties. This makes it a great choice for gardeners with limited space.
Still have a question?
Ask Hayley anything about this product before you decide.