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