SproutSmart
SproutSmart™ Intelligent Garden Sowing

Boxwood

Family: Lamiaceae Herb

Planting Schedule

Provide your location or planting zone to unlock dates and add Boxwood to a garden.

Aromatic as a fresh-cut green bouquet, Boxwood Basil fills the garden with a steady, richly perfumed presence—bright, cool, and unmistakably basil-sweet.

This bush basil forms a compact, tidy mound of tender leaves with a smooth, velvety texture and a balanced, flavorful bite that shines in fresh garnishes and fragrant sauces, while also holding its character beautifully when dried or gently warmed. Grow it for reliable, early harvests at about 45 days, and enjoy a long season of abundant leaf pickings from a plant that stays neat and productive.

Light: Full SunMaturity: 45 DaysHabit: Bush

Botanical illustration of Boxwood

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Boxwood 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 May 4th Jul 27th Sep 10th – Jul 15th
Zone 1b Apr 20th Jul 13th Aug 27th – Aug 1st
Zone 2a Apr 13th Jul 6th Aug 20th – Aug 29th
Zone 2b Apr 3rd Jun 26th Aug 10th – Aug 25th
Zone 3a Apr 3rd Jun 26th Aug 10th – Sep 1st
Zone 3b Apr 7th Jun 30th Aug 14th – Sep 21st
Zone 4a Apr 3rd Jun 26th Aug 10th – Sep 24th
Zone 4b Apr 1st Jun 24th Aug 8th – Sep 27th
Zone 5a Mar 27th Jun 19th Aug 3rd – Sep 30th
Zone 5b Mar 23rd Jun 15th Jul 30th – Oct 5th
Zone 6a Mar 20th Jun 12th Jul 27th – Oct 10th
Zone 6b Mar 14th Jun 6th Jul 21st – Oct 16th
Zone 7a Mar 9th Jun 1st Jul 16th – Oct 20th
Zone 7b Feb 27th May 22nd Jul 6th – Oct 28th
Zone 8a Feb 18th May 13th Jun 27th – Nov 5th
Zone 8b Feb 9th May 4th Jun 18th – Nov 12th
Zone 9a Jan 23rd Apr 17th Jun 1st – Nov 26th
Zone 9b Dec 29th Mar 23rd May 7th – Dec 9th
Zone 10a — Oct 1st Nov 15th – Feb 28th
Zone 10b — Oct 1st Nov 15th – Feb 28th
Zone 11a — Oct 1st Nov 15th – Feb 28th
Zone 11b — Oct 1st Nov 15th – Feb 28th
Zone 12a — Oct 1st Nov 15th – Feb 28th
Zone 12b — Oct 1st Nov 15th – Feb 28th
Zone 13a — Oct 1st Nov 15th – Feb 28th
Zone 13b — Oct 1st Nov 15th – Feb 28th

Crop Details

TraitValue
Days to Maturity45
Sun RequirementsFull SunFull sun
Growth HabitBush
Support NeededNone
Planting DepthNormal
Germination Temp (°F)75
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10

Culinary Notes


Chef's Note

Boxwood basil gives you a tidy, velvety leaf that stays sweet and aromatic rather than going sharp, so it’s built for chiffonade that still looks and tastes like basil-scented silk. Use it fresh for clean aromatics, or warm it just enough to perfume oil—its character holds up better than funkier, more volatile basils.

Best Uses

  • fresh torn-leaf garnish on grilled fish or roasted chicken
  • blitzed green sauce (pesto-style) where the flavor stays bright instead of turning rank
  • gentle warm infusion in olive oil for tossing with pasta or beans
  • air-dry or lightly warm for use in vinaigrettes and quick rubs

Flavor Profile

cool, basil-sweet aroma velvety tender leaf texture balanced herbaceous bite without harsh bitterness pleasantly perfumed, not overly spicy finish

Kitchen Pairings

extra-virgin olive oil lemon zest garlic parmesan mozzarella white beans

Frequently Asked Questions


How do I deal with boxwood leafminer (or leaf spot) when leaves start looking blighted or browning?
For boxwood leafminer, watch for silvery streaks and blotchy browning in new growth; remove and destroy affected tips and avoid shearing during active growth. If leaf spot is present (black/brown spots that spread on leaves), prune out infected branches for airflow, then water at the base so foliage stays dry and treat early with a labeled fungicide for boxwood leaf spot. Repeated outbreaks often mean improving sun/air movement and spacing—dense hedges stay wetter and spread problems faster.
During the main growing phase, how often should I water boxwood in full sun?
In active growth (spring through early summer), water deeply about 1–2 times per week so the root zone gets evenly moist but not soggy. Check by feel: the top 1–2 inches of soil should dry slightly between waterings, while the soil 4–6 inches down should remain damp. In full sun heat, increase frequency to prevent drying in the upper root layer—consistent dryness stresses boxwood and makes leaf browning more likely.
How can I tell when boxwood is ready to harvest for cuttings or trimming?
Boxwood isn’t typically “harvested,” but for cuttings, harvest only new growth: look for shoots that are green and flexible at the tips, with slightly firmer, less-floppy stems near the base of that flush. The best timing is when new spring growth has matured enough to hold leaves without wilting, usually within the plant’s ~45-day growth window after flush begins. For hedging, trim when the foliage is fully opened and the outer new growth has hardened—avoid cutting into still-soft, actively expanding tips.