Spacemaster

Family: Cucurbitaceae Vegetable

Planting Schedule

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Cool, crisp flesh with a clean, bright snap—Spacemaster cucumber delivers a refreshing bite and a subtly sweet, garden-fresh flavor in every slice.

Its medium-dark green fruit stays pleasantly firm with a smooth, even skin, making it a standout for slicing and showcasing in salads and fresh platters. Grow it for dependable midsummer harvests and a tidy, space-smart performance that keeps your vines productive.

Light: Full SunMaturity: 55 DaysHabit: Vine

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Spacemaster Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Jun 1st	Jun 15th	Aug 9th – Aug 1st
Zone 2a	May 25th	Jun 8th	Aug 2nd – Aug 29th
Zone 2b	May 15th	May 29th	Jul 23rd – Aug 25th
Zone 3a	May 15th	May 29th	Jul 23rd – Sep 1st
Zone 3b	May 19th	Jun 2nd	Jul 27th – Sep 21st
Zone 4a	May 15th	May 29th	Jul 23rd – Sep 24th
Zone 4b	May 13th	May 27th	Jul 21st – Sep 27th
Zone 5a	May 8th	May 22nd	Jul 16th – Sep 30th
Zone 5b	May 4th	May 18th	Jul 12th – Oct 5th
Zone 6a	May 1st	May 15th	Jul 9th – Oct 10th
Zone 6b	Apr 25th	May 9th	Jul 3rd – Oct 16th
Zone 7a	Apr 20th	May 4th	Jun 28th – Oct 20th
Zone 7b	Apr 10th	Apr 24th	Jun 18th – Oct 28th
Zone 8a	Apr 1st	Apr 15th	Jun 9th – Nov 5th
Zone 8b	Mar 23rd	Apr 6th	May 31st – Nov 12th
Zone 9a	Mar 6th	Mar 20th	May 14th – Nov 26th
Zone 9b	Feb 9th	Feb 23rd	Apr 19th – Dec 9th
Zone 10a	Continuous Production
Zone 10b	Continuous Production
Zone 11a	Continuous Production
Zone 11b	Continuous Production
Zone 12a	Continuous Production
Zone 12b	Continuous Production
Zone 13a	Continuous Production
Zone 13b	Continuous Production

Crop Details

Trait	Value
Days to Maturity	55
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	70
Min Night Temp (°F)	55
Harden Off (days)	12

Culinary Notes

Chef's Note

Spacemaster is built for that unmistakable cucumber bite—firm, even-fleshed slices that stay snappy under cool dressings. Its subtly sweet, clean flavor means it thrives with lemony acid and creamy or briny partners without turning watery.

Best Uses

thick slices on a platter with flaky salt—no weeping, holds its crunch
tossed into cucumber-forward salads with a light vinaigrette
quick fridge pickles for a tight, snappy bite
layered in sandwiches where it stays crisp (not soggy)

Flavor Profile

cool, crisp crunch clean, bright snap subtly sweet, garden-fresh flavor firm flesh with a smooth, even bite

Kitchen Pairings

lemon olive oil feta garlic yogurt

Frequently Asked Questions

What pest or disease problem commonly affects Cucumis sativus (cucumber), and how do I treat it?

Powdery mildew is a frequent issue on cucumber leaves, especially as days warm and foliage stays humid. Start treatment at the first white, powdery patches by spraying a labeled potassium bicarbonate or horticultural sulfur product, ensuring full coverage of leaf undersides, and remove the most heavily infected leaves to slow spread. Space plants for airflow and avoid wetting foliage when watering to reduce repeat outbreaks.

How often should I water cucumber (Cucumis sativus) during the main growing phase?

During fruiting, keep the soil evenly moist—water about 1–2 times per week so the top 1–2 inches stay damp, and increase frequency during hot, windy weather. Aim for deep watering at the base (not on leaves) because cucumber roots need consistent moisture to prevent bitter or misshapen fruits. If you let the soil dry out between waterings, cucumbers often develop uneven growth and quality.

How can I tell when Spacemaster cucumber (Cucumis sativus) is ready to harvest?

Harvest when fruits are firm and crisp, typically about 55 days from sowing, and pick them young—most slicing cucumbers are best around 6–8 inches long (check your seed packet for the target size). Use a gentle twist or cut with scissors, and harvest regularly (every 1–2 days in peak production) to encourage continued flowering and new fruit growth. If fruits start to yellow or grow past the ideal length, they become more seedy and less crisp.