Grandiflora Roses

  • HARDY AND DISEASE RESISTANT
  • TALL GROWTH
  • WONDERFUL FRAGRANCE

Grandiflora roses are known for their large, showy flowers. They are a combination of graceful blooms of the hybrid teas married with floribundas’ repetitive growth cycle. The shades of colors go from soft pastels to deep purples and are complemented by the hints of the sweetest floral perfumes. These tall and hardy roses develop on long-stemmed clusters for exquisite sophistication in flower border landscaping or hedging?Hardy and disease resistant.

Care Requirements

LIGHT

Grandiflora roses bloom the best in full sun. Choose a location with at least 6 hours of sun per day. Morning sun is more kind to the plant.

 

WATERING

One to two inches of water per week is usually sufficient, but this varies by climate and growing conditions. Hot locations and sandy soil like Colorado will need more frequent watering. Make sure to water the soil and not the leaves.

SOIL

A rich, sandy loam is the preferred soil for roses. Amend difficult soils with humus, or consider building up the beds to ensure good drainage. Roses will not tolerate soggy, wet roots. Mulch the plants to cool the roots and conserve water. 

FERTILIZER

Grandiflora rose bushes are heavy feeders and benefit from regular applications of fertilizer. Choose a balanced fertilizer or one labeled for roses. Iron is essential if the soil’s pH is too high. If the leaves turn yellow with green veins, use an iron supplement.

GRANDIFLORA ROSE VARIETIES

Roses-Grandiflora-Fun in the Sun-City Floral Garden Center- Denver

FUN IN THE SUN

Color: Gold/Pink
Fragrance: Strong Fruit and Spice
This new Grandiflora from renounced hybridizer Christian Bedard maintains its color to the end and provides a delightfully fruity scent, inviting butterflies and other pollinators to the garden. It’s a true English-style rose that contains 60-85 petals in each of its 3-4″ flower heads, appearing in clusters of 5 or 6 blooms per stem. True to its name, Fun in the Sun thrives in full sun with thorough watering early in the day.

Bloom Time: Late Spring to Fall
Plant Height: 3 -5 feet
Plant Spacing: 2 – 3 feet

Roses-Grandiflora-All Dressed Up-City Floral Garden Center Denver

ALL DRESSED UP

Color: Pink
Fragrance: Slight Rose
A real asset to the garden, All Dressed Up delivers everything you could want in a rose. Big, soft pink blooms reliably bear 35+ petals each for a very full appearance, and they appear in abundance throughout the long growing season. Old-fashioned in form, this English-type variety features clean, mid-green foliage, an upright, well-branched growth habit, and high-centered flowers that are perfect for fresh arrangements. They also have a uniquely crisp, green apple fragrance that makes visiting the garden a real treat.

Bloom Time: Late Spring to Fall
Plant Height: 4.5 – 5 feet
Plant Spacing: 3 – 5 feet

Red and white Rose Grandiflora love | City Floral Garden Center - Denver

LOVE

Color: Red/White Reverse
Fragrance: Slight Rose
There are two sides to every story. This Love story has one side that’s fiery hot red and another side that’s cool clear white. You’ll love Love in your garden for its two-toned buds, shapely blooms, and super-productive plant clothed with very dark green resistant foliage and reddened new growth. Consistent color. Size can shrink in the heat.

Bloom Time: Late Spring to Fall
Plant Height: 3 – 4 feet
Plant Spacing: 3 – 4 feet

Rose-parade-day-city floral garden center denver

PARADE DAY

Color: Pink/White Stripe
Fragrance: Strong Citrus and Spice
Parade Day blooms profusely with elegant buds and flowers accompanied by a delightful strong citrus-like fragrance with spices. The petals of each bud are perfectly organized like a well-synchronized marching band. The rhythm created is enhanced with attractive large foliage on a well-covered vigorous plant. Now, let’s bring family and friends into the garden to enjoy the performance!

Bloom Time: Late Spring to Fall
Plant Height: 4 – 6 feet
Plant Spacing: 3 – 4 feet

Rose-state of grace-city floral garden center denver

STATE OF GRACE

Color: Pink/Yellow
Fragrance: Fruity
The state of Grace has excellent downy and powdery mildew resistance, and good all-around disease resistance. The habit is uniform, compact, and rounded with flowers tidily blooming and reblooming on top. As the name describes, the transition from bud to bloom is seamless here, the flowers staying elegant throughout. The coloring is very elaborate, too. Bronzy pink outer petals stretch to reveal a gorgeous golden center, all hues blending together into a nice, soft tone. As a Grandiflora, it’ll produce 3-4 of these nice large flowers in a cluster.

Bloom Time: Summer
Plant Height: 4 – 5 feet
Plant Spacing: 5 – 6 feet

You May Also Like

Care Requirements

LIGHT

Hydrangeas do well in partially shaded areas like under a large tree or on the side of a house. They like to receive sun in the morning, and the partial shade is in the heat of the afternoon. In Colorado, too much full sun will cause them to get sunburned.

SOIL

Hydrangea shrubs need to have well-draining soils that is rich in organic matter. Most Colorado soils will benefit from the addition of peat moss and compost that helps retain moisture. The pH determines the colors of the blooms. Acidic soil will give you blue flowers, and alkaline soil gives you pink flowers.  

FERTILIZER

If hydrangea shrubs are given too much high-nitrogen fertilizer, they may grow full and lush, but there will be fewer flowers. If the soil is rich, fertilizer is not needed. Otherwise, a light application in March or April may be warranted.

WATERING

Make sure to water your hydrangea shrubs regularly. Those big blooms require a lot of water to stay lush and full. About one inch of water throughout the week is ideal. If they receive more sun give them at least two inches during the hotter summer days.

Our Advice

  • Allium flowers need full sun for the best blooms. 
  • Plant allium bulbs when temperature is consistently in the low 60’s or lower. 
  • Allium bulbs and flowers enjoy having soil that is well-draining and has organic matter. Amend the soil with top soil, compost and organic material. 
  • Fertilize when planting the allium bulbs with either Espoma Organic Bulb-tone or Hi Yield Dutch Bulb Food. Applying fertilizer at least 3″ below bulb will make sure the roots get the most from the fertilizer. 
  • Plant allium bulbs 4 – 6 inches deep with the old roots facing the ground and the pointed end facing up. 
  • Water the planted area immediately after planting but no additional watering in fall or spring is necessary. 
  • Apply a 2 – 3 inch layer of  mulch to the planing area in mid to late fall. 

Endless Summer Hydrangea Varieties

THE ORIGINAL

TWIST AND SHOUT

SUMMER CRUSH

BLOOMSTRUCK

BLUSHING BRIDE

Oakleaf Hydrangea Varieties

Ruby Slippers

Munchkin

Other Hydrangea Varieties

Limelight

Little Lime

Blue Enchantress

Quickfire

Little Quickfire

Pinky Winky

garden resources

Garden a Mile High

Ripe tomato cluster in greenhouse | City Floral Garden Center - Denver

Tomato List 2026

It’s that time of year, garden planning and our 2026 Tomato List is out! Our current Tomato List includes details on fruit size, days to harvest,

monstera esqueleto houseplant in raised gold planter

Houseplant Trends for 2025

Who’s ready to dive into everything related to houseplant trends for 2025?! We love to see what indoor plants and display ideas have grown in

peach cobbler with vanilla ice cream in bowl fresh peach cobbler recipe

Eight Fresh Peach Recipes

Have more peaches than you know what to do with? If you’re looking for fresh ideas (literally) and want to mix it up a little,

Join Garden Rewards

This field is for validation purposes and should be left unchanged.
Email(Required)
Name(Required)
Address(Required)
Please enter a number from 1 to 31.