Giant Blue Iris grows well for those who pay attention.

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Giant Blue Iris

Iris giganticaerulea

Zones 6–13

Stats
Sunfull sun
Waterhigh
Grow time—
Height>6ft
Spacing>24in
Light
Full sun✓
Part shade✓
Shade✗
Traits
Life cycleperennial
Categorywildflower
Growth habitupright
Seasonwarm
Frost tolerancehardy
Heightover 6ft
Spacingover 24in
Days to bloomover 150
Native us✓
Growing
Waterhigh
Drainagewet tolerant
Soil ph min5.5
Soil ph max7.5
Propagation
Seed✓
Cutting✗
Division✓
Graft✗
Tuber bulb crown✓
Transplant✓
Container ok✓
Spreadrunners
Deer resistant✓
Drought tolerant✗
Pollinator friendly✓
Toxic to
People✓
Pets✓
Livestock✓
Bloom
Lengthunder 2wk
Colors
White✓
Yellow✗
Orange✗
Red✗
Pink✗
Purple✓
Blue✓
Green✗
Fragrant✓
Reblooms✗
Deadhead✓
Cut flower✓
Dried flower✗
Invasive
Statusnone
Regions
Northeast✗
Southeast✗
Midwest✗
Plains✗
Southwest✗
Mountain west✗
Pacific northwest✗
California✗
Hawaii✗
State noxious✗
Escapes cultivation✗
Calendar, zone 7
JanFebMarAprMayJunJulAugSepOctNovDec
Sownonoyesyesnononononononono
Harvest————————————