Illustration
Serena Blue
Angelonia 'Serena Blue'
Serena Blue blooms from June through October.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Serena Blue
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 9–11. Expect it to reach about 16 in tall and 12 in wide at maturity, in roughly 1 year (checked).
No toxicity note is on file for Serena Blue. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Serena Blue
Wait until all danger of frost has passed, then plant out Serena Blue into warm soil; in most zones that means late spring. Planted then, it flowers from June to October.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 9, the middle of this plant's hardy range, start with zone 9 in February. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Serena Blue get?
16 intall5 ft 7 inan adult12 inwideSee Serena Blue in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant Serena Blue
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Serena Blue about 12 in apart, center to center, so each plant has room to reach its full width.
Add Serena Blue to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
Serena Blue's height, spread, hardiness zones, sun, water, bloom months and color, years to mature size, trait tags, soil, diseases, pests and toxicity were checked against 11 published sources on August 23, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- Missouri Botanical GardenPlant Finderheight, hardiness zones, sun, water, bloom months and color, trait tags, soil and diseases
- lsuagcenter.comLSU AgCenter (Louisiana Super Plants)hardiness zones, water, bloom months and color, trait tags, soil, diseases and pests
- info.ballseed.comBall Horticultural Company (PanAmerican Seed's distributor; same compa...height, spread, sun, trait tags and pests
- agsci.psu.eduPenn State Flower Trials (Southeast Agricultural Research & Extension...height, spread and bloom months and color
- NC State Extensiontrait tags, soil, diseases and pests
- harrisseeds.comHarris Seedsbloom months and color and trait tags
- edenbrothers.comtrait tags and pests
- Mississippi State University ExtensionSouthern Gardening, Gary Bachmanheight and spread
- ASPCAtoxicity
- ASPCAtoxicity
- Clemson Home and Garden Information CenterClemson HGICyears to mature size
How the checking works, and what each standard covers, is on the verified plants page.
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Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.