Life Span
Annual and Perennial
Annual and Perennial
Type
Broadleaf Evergreen
Flowering Plants, Shrubs
Origin
China
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
Osmanthus fragrans
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Habitat
Lowland, shaded fields, Shaded sites, Slopes, Subtropical climates
Forest edges, Hillside, Woods
USDA Hardiness Zone
7-99
2-11
Sunset Zone
21,22
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Upright/Erect
Flower Color
White
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Dark Blue, Black
Brown, Sandy Brown
Leaf Color in Spring
Gray Green, Dark Green
Sea Green, Gray Green
Leaf Color in Summer
Dark Green
Sea Green, Gray Green
Leaf Color in Fall
Gray Green, Dark Green
Sea Green, Gray Green
Leaf Color in Winter
Gray Green, Dark Green
Light Green
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Slow
Very Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Early Spring, Late Winter
Indeterminate
Tolerances
Drought
Drought
Where to Plant?
Ground, Pot
Container, Ground, Pot
How to Plant?
Seedlings, Vegetative Reproduction
Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Allow soil to be completely dry in between waterings, Requires watering in the growing season, Water Deeply, Water deeply about once a week
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral, Alkaline
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Well drained
Loamy
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Do not prune during shooting season, No pruning needed in the early stages, Prune to stimulate growth, Remove dead or diseased plant parts, Remove deadheads, Shape and thin as needed
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
Compost
Pests and Diseases
Pests and diseases free
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Plant Tolerance
Drought
Drought
Flower Petal Number
Single
Single
Foliage Texture
Fine
Medium
Foliage Sheen
Glossy
Matte
Attracts
Bees
Butterflies
Allergy
-
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Aesthetic Uses
Beautification
Beautification, Bouquets, Landscape Designing, Showy Purposes
Environmental Uses
Air purification
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Medicinal Uses
Antioxidants
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Flowers, Fruits, Leaf Stalks, Leaves
Flowers, Root
Other Uses
Culinary use, Used for fragrance, Used for producing cooking oil, Used as a spice
Can be made into a herbal tea, Decoration Purposes, Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Used As Indoor Plant
Yes
Yes
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Foundation, Hedges, Mixed Border
Container, Herb
Botanical Name
OSMANTHUS delavayi
CENTAUREA cyanus
Common Name
Sweet Olive
Tea Olive
Fragrant Olive
Batchelor's Buttons, Cornflower
In Hindi
चाय ओलिव
Hydrangea
In German
Tea Olive
Hortensie
In French
Tea Olive
Hortensia
In Spanish
té verde oliva
Hortensia
In Greek
τσάι Ελιάς
υδραγεία
In Portuguese
Tea Olive
Hortênsia
In Polish
Herbata z oliwek
Hortensja
In Latin
Tea Olive
Hibiscus
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Family
Oleaceae
Asteraceae
Genus
Osmanthus
Centaurea
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Importance of Tea Olive and Cornflower
Want to have the most appropriate plant for your garden? You might want to know the importance of Tea Olive and Cornflower. Basically, these two plants vary in many aspects. Compare Tea Olive and Cornflower as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Tea Olive is Antioxidants whereas of Cornflower is Fever, Kidney problems and Urinary tract problems. Tea Olive has beauty benefits as follows: while Cornflower has beauty benefits as follows: .
Compare Facts of Tea Olive vs Cornflower
How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Tea Olive vs Cornflower and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Tea Olive are whereas of Cornflower have Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Tea Olive has no showy fruits and Cornflower has no showy fruits. Also Tea Olive is not flowering and Cornflower is not flowering . You can compare Tea Olive and Cornflower facts and facts of other plants too.