Growing Strawflowers in Santa Cruz County: The Everlasting Cut Flower
Strawflowers might be the most underrated flowers in the cutting garden. With their papery, iridescent petals that retain color and form indefinitely when dried, strawflowers bridge the gap between fresh flowers and permanent decor. Fresh, they're glossy and vibrant. Dried, they're everlasting.
For Santa Cruz County gardeners, strawflowers offer a rare combination: they thrive in our Mediterranean climate, tolerate drought once established, produce continuously for months, and require minimal care. Whether you want long-lasting fresh bouquets, dried arrangements that last for years, or simply reliable summer color, strawflowers deliver.
This guide covers everything you need to know to grow beautiful strawflowers in Santa Cruz County, from variety selection through drying and preservation.
What Makes Strawflowers Special
Strawflowers (Xerochrysum bracteatum, formerly Helichrysum bracteatum) are native to Australia, where they evolved in dry conditions similar to California's Mediterranean climate. Their "petals" are actually papery bracts that protect the true flowers at the center.
Key characteristics:
Everlasting quality. The papery bracts contain very little moisture, so they dry naturally without shriveling or losing color. Properly dried strawflowers can last 5-10 years or longer in arrangements.
Extended bloom period. In our climate, strawflowers bloom from midsummer through frost (which may never come in mild areas), providing 4-6 months of continuous production with regular harvesting.
Drought tolerance. Once established, strawflowers need minimal supplemental water. They're excellent candidates for low-water gardens and water-wise landscapes.
Heat tolerance. Unlike many cut flowers that struggle in summer heat, strawflowers thrive in warm conditions. They complement cool-season flowers perfectly, filling the gap when sweet peas and ranunculus are dormant.
Low maintenance. Few pests bother strawflowers, and they require little care beyond occasional deadheading. They're among the easiest cut flowers to grow.
Strawflower Varieties
Modern breeding has expanded strawflower options far beyond the traditional mixed colors. Look for varieties bred specifically for cutting, with long stems and double flowers.
By plant type:
Tall cutting varieties (24-36+ inches): Bred for long stems and cut flower production. These are what you want for a cutting garden.
Dwarf/bedding varieties (10-18 inches): Compact plants for garden borders and containers. Stems too short for most cutting purposes.
Best varieties for Santa Cruz County cut flower gardens:
| Variety | Height | Colors | Notes |
|---|---|---|---|
| Tall Double Mix | 30–36" | Full range | Classic cutting variety, easy |
| Silvery Rose | 30–36" | Soft pink | Elegant, popular for weddings |
| King Size series | 36–48" | Various | Extra-long stems, large flowers |
| Swiss Giants | 30–36" | Mix | Heirloom variety, reliable |
| Copper Red | 30–36" | Bronze / rust | Unusual color, striking |
| White | 30–36" | White | Clean, versatile |
| Apricot / Peach Mix | 30–36" | Warm tones | On-trend colors |
| Vintage White | 24–30" | Cream / blush | Antique look, lovely dried |
Color note: Strawflower colors hold remarkably well when dried. What you see at harvest is essentially what you'll see years later. Choose colors with your dried arrangements in mind.
When and How to Plant
Timing. Strawflowers need warm soil to germinate and grow:
Start seeds indoors: March-April (6-8 weeks before transplant)
Direct sow outdoors: May-June when soil reaches 60°F+
Transplant seedlings: After last frost, when soil has warmed
In coastal areas, wait until soil is genuinely warm (late May/June). Inland areas can plant slightly earlier.
Starting from seed:
Strawflowers transplant well, making indoor starting practical:
Start seeds 6-8 weeks before your target transplant date
Sow on the surface of moist seed-starting mix (seeds need light to germinate)
Press lightly into surface but don't cover
Maintain 65-75°F for germination (10-14 days)
Grow seedlings in bright light
Transplant when nighttime temperatures stay above 50°F
Direct sowing:
Works well in our climate:
Wait until soil reaches 60°F consistently
Prepare bed with compost
Sow seeds on the surface and press lightly
Keep moist until germination
Thin to 9-12 inches apart
Site selection:
Full sun (6+ hours, ideally 8+)
Well-draining soil (essential; strawflowers rot in wet soil)
Average to poor soil is fine (too rich produces foliage over flowers)
South or west exposure ideal
Spacing: 9-12 inches apart for cutting gardens. Closer spacing produces more but smaller flowers; wider spacing produces larger blooms.
Caring for Strawflowers
Strawflowers are remarkably low-maintenance once established.
Watering:
Water regularly until established (first 3-4 weeks)
Once growing well, reduce watering significantly
Allow soil to dry between waterings
Overwatering causes more problems than underwatering
In most Santa Cruz County locations, established strawflowers need supplemental water only during prolonged dry spells
Feeding:
Minimal fertilizer needed
Too much nitrogen produces leggy plants with few flowers
One application of balanced fertilizer at planting is usually sufficient
If plants look pale or stunted, side-dress lightly
Staking:
Tall varieties may need support, especially in windy locations
Grow-through plant supports work well
Or plant densely so plants support each other
Pest and disease management:
Strawflowers have few problems:
Aphids: Occasionally colonize flower buds. Spray with water or use insecticidal soap.
Powdery mildew: Can occur in humid conditions late in the season. Improve air circulation; usually not severe enough to require treatment.
Root rot: The main killer of strawflowers. Caused by overwatering or poor drainage. Ensure soil drains well and don't overwater.
Harvesting Strawflowers
Timing is crucial for both fresh and dried use.
For fresh arrangements:
Harvest when flowers are about 3/4 open, with the outer bracts reflexed but the center still showing color. Flowers continue to open slightly in the vase.
Fresh strawflower vase life: 10-14 days (exceptional for fresh flowers)
For drying (most common use):
Harvest at several stages for different effects:
Tight buds: Harvest when bracts show full color but haven't opened. These dry as rounded buttons, excellent for dried arrangements and crafts.
Partially open: Harvest when outer bracts are reflexing but center is still closed. Most versatile stage; flowers open slightly as they dry.
Fully open: Harvest when all bracts are reflexed. These show the most color but centers may shatter if too mature.
Harvesting technique:
Cut in morning after dew dries
Use clean, sharp scissors
Cut stems as long as possible
Strip lower foliage immediately
Drying Strawflowers
Strawflower Harvesting & Drying
Create everlasting arrangements that last for years
Harvest Stages for Drying
Drying Method
Pro Tips
Preserve Color
Dry in complete darkness. Light fades color quickly. Store away from windows.
Wire for Durability
Insert florist wire through the flower base before drying. Dried stems are brittle.
Proper drying preserves color and form for years.
Method 1: Hang drying (simplest)
Bundle 5-8 stems with rubber bands (stems shrink as they dry)
Hang upside down in a dark, dry, well-ventilated area
Allow 2-3 weeks to dry completely
Flowers are ready when stems snap rather than bend
Method 2: Wire stems before drying
Strawflower stems become brittle when dried and often break. Florists wire stems before drying:
Cut stems short (just below flower head)
Insert florist wire through the base of the flower into the center
Create a small hook at the top of the wire (hidden in the flower)
Allow to dry; the wire becomes the permanent "stem"
This method produces more durable flowers for wreaths and permanent arrangements.
Method 3: Drying flat
For craft projects:
Cut flowers with very short stems
Lay face-down on screens or newspaper
Dry in a warm, dark place
Use for potpourri, resin projects, or decorative crafts
Preserving color:
Dry in complete darkness (light fades colors)
Process quickly after harvest (don't leave cut flowers sitting)
Store dried flowers away from light and humidity
[INSERT GRAPHIC: Strawflower Harvesting and Drying Guide]
Strawflowers by Microclimate
Coastal fog belt (Westside Santa Cruz, Live Oak, Aptos, Capitola)
Good strawflower territory:
Flowers appreciate our mild temperatures
May bloom more slowly than inland
Extended bloom season due to lack of hard frost
Watch for powdery mildew in humid areas
Recommendations: Excellent location for strawflowers. May not produce as abundantly as hotter climates, but reliable and long-lasting. Choose the sunniest spot available.
San Lorenzo Valley and sunny inland areas (Boulder Creek, Scotts Valley)
Excellent strawflower territory:
Warm temperatures promote vigorous growth
Good sun exposure drives flower production
May need slightly more water than coastal areas
Recommendations: Ideal conditions for strong strawflower production. Plant in full sun and enjoy abundant harvests.
Under the redwoods (Felton, Ben Lomond canyons)
Challenging territory:
Shade reduces flowering significantly
Humidity can promote disease
Plants may be leggy and sparse
Recommendations: Only plant strawflowers if you have a sunny clearing. They need full sun to perform well.
Pajaro Valley / Watsonville
Excellent territory:
Warm conditions support vigorous growth
Long growing season
Excellent for both fresh cutting and drying
Recommendations: Great location for strawflower production. All varieties should perform well.
Creative Uses for Dried Strawflowers
Beyond traditional arrangements, dried strawflowers have many uses:
Wreaths: Strawflowers are perfect wreath components. Wire individual flowers into grapevine or straw bases for everlasting door decor.
Potpourri: Add color to dried flower potpourri. Combine with lavender, rose petals, and scented materials.
Resin crafts: Preserve flowers in resin for jewelry, coasters, and decorative items.
Pressed flowers: Smaller blooms press well for cards, bookmarks, and framed art.
Mixed dried arrangements: Combine with other everlastings like statice, globe amaranth, and dried grasses for arrangements that last for years.
Wedding decor: Popular for bouquets, boutonnieres, and table arrangements. Especially practical for destination weddings or events where fresh flowers would wilt.
Companion Plants for Strawflowers
Strawflowers combine well with other drought-tolerant cut flowers:
Good companions:
Statice (similar culture, complementary texture)
Globe amaranth (another excellent everlasting)
Zinnias (similar water and sun needs)
Cosmos (easy-care companions)
Yarrow (drought-tolerant, dries well)
Ornamental grasses (texture contrast, also dry well)
In the garden: Strawflowers' silver-green foliage and bright flowers look beautiful with Mediterranean herbs like lavender, rosemary, and sage.
Frequently Asked Questions
Why won't my strawflower seeds germinate? Most common causes: seeds buried too deep (they need light), soil too cold, or old seed. Sow on the surface, ensure soil is 65°F+, and use fresh seed.
Why are my strawflowers leggy with few blooms? Usually too much shade or too much nitrogen fertilizer. Move to full sun and reduce feeding.
How long do dried strawflowers last? With proper storage (away from light, dust, and humidity), 5-10 years or longer. Colors may fade very slightly over time but flowers retain their form indefinitely.
Can I grow strawflowers in containers? Yes. Choose dwarf varieties for smaller containers or tall varieties for large (10+ gallon) containers. Use well-draining potting mix and don't overwater.
Do strawflowers self-sow? Yes, often prolifically. Volunteer seedlings may appear the following year. These can be transplanted or allowed to grow where they appear.
When is the best time to harvest for drying? Harvest when outer bracts are fully colored and beginning to reflex from the center, but the flower isn't fully open. This stage produces the most attractive dried flowers with good longevity.
My dried strawflowers are faded. What went wrong? Flowers dried in light fade quickly. Always dry in complete darkness. Also, overly mature flowers fade more than those harvested at the right stage.
Are strawflowers edible? No, strawflowers are not edible and should not be used to decorate food.
Free Resources
Download these guides to support your strawflower growing:
Seasonal Planting Calendar: Month-by-month timing for Santa Cruz County
Seed Starting Guide: Tips for starting seeds successfully
Visit our Garden Toolkit for more downloadable resources.
Related Articles
Harvesting and Drying Strawflowers
Timing is everything for perfect dried blooms
Harvest when outer 1-2 rows of petals have opened but center is still closed. Flowers continue opening as they dry. Cut too late = petals over-open and look fluffy.
Remove all foliage from stems. Leaves dry poorly and can harbor mold.
Bundle 5-8 stems loosely with a rubber band. Hang in a warm, dark, dry space with good airflow. Avoid garages (too damp on the coast).
Stems should snap (not bend) when fully dry. Store away from direct light to preserve color. Properly dried strawflowers last years.
