Heirloom

Katz Bright Rose

Matthiola incana

A beautiful orange rose blooms in the light.

Long stems with 1 1/2-2", bright pink blooms. Early blooming one-cut series. Performed well in our spring, early summer, and fall trials. Good uniformity in bloom time and stem length. 55-60% double-flowering without selection; some selection possible. NOTE: This variety produces one flowering stem per plant. Pinching is not advisable as it will terminate flowering. Edible Flowers: The peppery, clove-like flavor of the flowers lends itself well to use as a garnish on salads, desserts, and drinks.

Harvest

90-100d

Days to harvest

📅

Sun

Full sun to partial shade

☀️

Zones

6–10

USDA hardiness

🗺️

Height

1-3 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Transplant

Direct Sow

Start Indoors

Transplant

Direct Sow

Showing dates for Katz Bright Rose in USDA Zone 7

All Zone 7 flower →

Zone Map

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Katz Bright Rose · Zones 6–10

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

SeasonWarm season annual

FlavorPeppery, clove-like flavor with a subtle spice note, ideal for culinary garnishes.

Colorbright pink

Size1 1/2-2"

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	April – May	June – July	June – August	—
Zone 4	March – April	June – June	June – July	—
Zone 5	March – April	May – June	May – July	—
Zone 6	March – April	May – June	May – July	—
Zone 7	February – March	April – May	April – June	—
Zone 8	February – March	April – May	April – June	—
Zone 9	January – February	March – April	March – May	—
Zone 10	January – January	February – March	February – April	—
Zone 1	May – June	July – August	July – September	—
Zone 2	April – May	June – July	June – August	—
Zone 11	January – January	January – February	January – March	—
Zone 12	January – January	January – February	January – March	—
Zone 13	January – January	January – February	January – March	—

Succession Planting

Stock is a one-flush crop — each plant sends up its spike, blooms, and that's largely it. You don't stagger individual plants the way you would lettuce, but you can spread your indoor sowings to extend the overall cut-flower window. Start a first tray in early February, a second in early March, and transplant each round out in April and May respectively. That gives you two overlapping waves of bloom separated by 3-4 weeks, before daytime highs push past 85°F and shut things down.

Don't direct sow after late April in zones 7 and warmer — stock germinating in warm soil rarely gets the vernalization it needs to set double-flowered spikes reliably. For a fall run, start another tray indoors in late July and transplant in September once nights drop back below 65°F consistently.

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day), Partial Shade (Direct sunlight only part of the day, 2-6 hours). Soil: Clay, High Organic Matter, Loam (Silt), Sand. Soil pH: Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 1 ft. 0 in. - 3 ft. 0 in.. Spread: 0 ft. 9 in. - 1 ft. 6 in.. Spacing: Less than 12 inches, 12 inches-3 feet. Growth rate: Rapid. Maintenance: Low. Propagation: Seed. Regions: Coastal, Mountains.

Harvesting

Katz Bright Rose reaches harvest at 90 - 100 days from sowing per Johnny's Selected Seeds. Expect 1 1/2-2" at peak. As an annual, harvest continues until frost ends the season.

Seeds will ripen in August and September.

Harvest time: Fall

Storage & Preservation

Fresh Katz Bright Rose flowers are best stored in a cool place, ideally in the refrigerator at 35-40°F with 90-95% humidity to extend vase life up to 7-10 days. Keep stems in fresh water and change water every 2-3 days. For preservation, air-dry flowers by hanging stems upside-down in a dark, well-ventilated space for 2-3 weeks to retain color and shape. Alternatively, press flowers between parchment paper under heavy weight for 1-2 weeks for botanical crafts. Freeze edible petals in ice cubes with water for decorative cocktails and beverages.

History & Origin

Katz Bright Rose is open-pollinated, meaning seed saved from healthy plants will produce true-to-type offspring. Listed in the Johnny's Selected Seeds catalog.

Origin: The Coast of Europe from Spain to Greece.

Advantages

+Bright pink blooms create stunning visual impact in spring and fall arrangements.
+Excellent uniformity in bloom time and stem length simplifies harvest scheduling.
+Long stems ideal for cutting and professional floral arrangement work.
+Early blooming one-cut series maximizes productivity in short growing seasons.
+Edible flowers with peppery clove flavor add culinary versatility and garnish value.

Considerations

-Single stem per plant limits yield compared to pinchable varieties.
-Pinching terminates flowering, eliminating common production technique options.
-90-100 day timeline requires significant space and resource investment.
-Only 55-60% naturally double-flowering without costly manual selection process.

Companion Plants

Lavender, rosemary, and catmint are good neighbors for Katz Bright Rose because they share similar drainage preferences and pull in parasitic wasps and hoverflies — both of which knock back aphid pressure before it gets established on your stock. Tagetes patula marigolds tucked at the bed's edge add another layer: their root exudates discourage root-knot nematodes, which can quietly stress Matthiola in beds that have hosted a lot of vegetable crops over the years.

Black walnut (Juglans nigra) is the one to plant far away from — its roots release juglone, and Matthiola incana is sensitive enough that you'll see decline before you figure out the cause. Large trees cause a different problem: their roots out-compete shallow annuals for water and nutrients, and the shade drops you below the 6 hours of sun stock needs to push up those dense flower spikes. Skip brassicas as companions too — they share the same disease pool as stock, including clubroot and Erysiphe cruciferarum powdery mildew, with no compensating benefit to either crop.

Plant Together

Lavender

Repels aphids, moths, and other pests while attracting beneficial pollinators

Marigold

Deters nematodes and aphids, provides natural pest control

Catmint

Repels ants, aphids, and rodents while attracting beneficial insects

Allium

Natural fungicide properties help prevent black spot and powdery mildew

Garlic

Repels aphids, Japanese beetles, and helps deter fungal diseases

Clematis

Provides ground shading for rose roots while sharing similar growing conditions

Parsley

Attracts beneficial insects like hoverflies that prey on rose pests

Rosemary

Repels beetles and other harmful insects with its strong aromatic oils

Keep Apart

Black Walnut

Releases juglone toxin that inhibits rose growth and can cause wilting

Large Trees

Compete for nutrients and water, create excessive shade reducing flowering

Brassicas

Heavy feeders that compete for nutrients and may stunt rose growth

Troubleshooting Katz Bright Rose

What you'll see, why it happens, and what to do about it.

Seedlings collapse at soil level, stems pinched and rotted at the base

Likely Causes

Damping off (Pythium or Rhizoctonia fungi) — triggered by overwatering and poor air circulation around seedlings
Starting seeds in non-sterile potting mix that carries fungal load

What to Do

1.Use a sterile seed-starting mix and clean trays; don't reuse last year's mix
2.Water from the bottom and let the surface dry slightly between waterings
3.Run a small fan near seedlings for 1-2 hours a day to improve airflow

Lower leaves turning yellow, starting around week 6-8 after transplant, with the plant otherwise looking okay

Likely Causes

Nitrogen drawdown — common in sandy soils or beds that haven't been amended recently
Overwatering causing root stress that limits nitrogen uptake

What to Do

1.Side-dress with a balanced granular fertilizer (10-10-10) or a light application of fish emulsion at half strength
2.Check drainage — stock (Matthiola incana) hates wet feet; raised beds or well-amended ground drain better than compacted garden soil
3.Strip the worst yellow leaves to keep air moving through the plant

Buds forming but flowers failing to open fully, or blooms browning at the tips before they open

Likely Causes

Heat stress — daytime temps pushing above 80°F causes bud blast in stock
Inconsistent watering during bud set, leading to desiccation of tender flower tissue

What to Do

1.Cut stems early in the morning before heat builds; don't leave cut stems sitting in warm air
2.Apply 2-3 inches of straw mulch around the base to buffer soil temperature swings
3.Next season, start indoors in early February so plants are already blooming before daytime highs climb past 80°F at the day 90-100 mark

Leaves with gray powdery coating, worst on older growth, appearing mid-season

Likely Causes

Powdery mildew (Erysiphe cruciferarum) — hits stock hard when nights are cool and days are warm, especially in crowded plantings
Poor spacing that prevents foliage from drying after rain or overhead irrigation

What to Do

1.Remove and trash (not compost) the most affected leaves immediately
2.Spray remaining foliage with diluted neem oil (2 tsp per quart of water) every 7 days until symptoms stop spreading
3.Space transplants at least 12 inches apart — Matthiola incana wants airflow more than it wants company

Frequently Asked Questions

How long does Katz Bright Rose flower last once cut?▼

Katz Bright Rose flowers typically last 7-10 days in a vase with fresh water changed every 2-3 days. Store in a cool location, preferably the refrigerator, at 35-40°F to extend vase life. Removing lower leaves and re-cutting stems at an angle every few days also helps prolong freshness and vibrancy of the bright pink blooms.

Is Katz Bright Rose good for beginner flower gardeners?▼

Yes, Katz Bright Rose is excellent for beginners. It's classified as an easy-to-grow heirloom variety that performs reliably in spring, summer, and fall. The variety requires full sun to partial shade (4-6+ hours) and minimal maintenance. However, remember that pinching is not recommended as it terminates flowering—just allow the single flowering stem to develop naturally.

Can you grow Katz Bright Rose in containers?▼

Yes, Katz Bright Rose can be grown successfully in containers. Use well-draining potting soil and ensure the pot is large enough to support robust stem growth. Container cultivation allows for easy placement in sunny or partially shaded locations. Regular watering and adequate sunlight are essential for optimal long-stem blooms and early flowering.

What does Katz Bright Rose taste like and how can you use it?▼

Katz Bright Rose petals have a peppery, clove-like flavor and are edible. They work beautifully as garnishes on salads, desserts, and beverages. The flowers add both visual appeal and a subtle spice note. When using as edible flowers, ensure no pesticides were applied and harvest petals just before use for the freshest taste and appearance.

When should I plant Katz Bright Rose for early season blooms?▼

Sow Katz Bright Rose seeds indoors 6-8 weeks before your last spring frost, or direct sow after the last frost date for later blooms. This variety is an early bloomer in the one-cut series, so starting seeds indoors ensures flowers develop in time for spring and early summer harvests. Fall planting also performs well for autumn blooms.

Why shouldn't I pinch Katz Bright Rose plants?▼

Katz Bright Rose produces only one flowering stem per plant, so pinching will terminate flowering entirely and prevent bloom production. Unlike varieties bred for multi-stem growth, this one-cut series relies on single-stem development. Allow the main stem to grow freely without pinching to ensure you get the full display of 1½-2" bright pink double flowers.