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Evolvulus

Family: Convolvulaceae Trailing flowering plant
Zone 6b Save Garden

Planting Schedule

Add Evolvulus to your garden to build a schedule and get reminders.

A wash of sky-blue blooms drifts across the garden like living watercolor—each flower opening to a crisp, electric blue that holds its charm for weeks.

Evolvulus glomeratus forms a dense, low mound of fine-textured foliage, with a softly trailing habit that knits together into a reliable groundcover. Let it shine in beds and borders for effortless color, and enjoy its drought-tolerant resilience once established.

Light: Full SunMaturity: 75 DaysHabit: Spreading

Botanical illustration of Evolvulus

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsDirect Sow
Last FrostApr 25th
Transplant / Sow OutdoorsJun 20th
Harvest BeginsSep 3rd
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsFull SunFull sun
Growth HabitSpreading
Support NeededNone
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)55
Harden Off (days)7

Frequently Asked Questions

What pest or disease most often affects Evolvulus glomeratus, and how do I stop it?
Evolvulus glomeratus is prone to powdery mildew when nights are cool and leaves stay damp or too shaded. Improve airflow by spacing plants and watering at the base, then spray early with horticultural sulfur or a labeled fungicide at the first signs of white dusting on leaves. Avoid overhead sprinkling and remove badly infected leaves to reduce spread.
How often should I water Evolvulus glomeratus during its main growth phase?
During active growth, water deeply only when the top 1–2 inches of soil are dry, aiming for evenly moist but not soggy soil. In full sun beds, this often means about 1–2 times per week, but adjust for heat and rainfall—Evolvulus performs poorly in persistently wet soil. Use well-draining soil so water drains quickly after each watering.
How can I tell when Evolvulus glomeratus is ready to harvest?
Evolvulus glomeratus is usually harvested for ornamental blooms rather than a traditional edible harvest. Start harvesting/cutting stems for flowers when plants have consistent blue, sky-like blooms and active bud formation (typically around 70–90 days after sowing, near the ~75-day window). Harvest by snipping flowering tips regularly to encourage more side branching and continued bloom.

Today's Conditions

Outdoor planting for Evolvulus in Zone 6b typically begins around 2026-06-20. Wait until soil reaches at least 60°F before transplanting Evolvulus.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Evolvulus.

Today's Conditions

Outdoor planting for Evolvulus in Zone 6b typically begins around 2026-06-20. Wait until soil reaches at least 60°F before transplanting Evolvulus.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Evolvulus.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 55°F before moving outdoors. Harden off for 7 days first.

Expert Note

Start after nights are consistently warm, and transplant into well-drained soil since Evolvulus dislikes cold, wet roots.