Color Star
Color Star
ColorStar, which is a 19-13-6, is our premium flower fertilizer, expertly formulated to deliver vibrant blooms, lush foliage, and healthier plants all season long. Trusted by professional landscapers and home gardeners alike since 1983, this time-tested formula increases both the quantity and quality of your blooms, producing larger, more colorful, and longer-lasting flowers.
What makes ColorStar stand out? It’s all in the blend. ColorStar is packed with a complete spectrum of essential plant nutrients, including four types of iron, multiple trace minerals, and five unique sources of nitrogen, each with different time-release properties. This means your plants get a steady, balanced supply of nutrients for up to 5 months with just one application.
Perfect for both indoor and outdoor use, ColorStar is ideal for annuals, perennials, bulbs, houseplants, hanging baskets, flowering shrubs, container gardens, and landscape beds. Whether you're maintaining a front-yard flower bed or a sunlit windowsill, ColorStar helps your plants thrive with minimal effort.
Easy to apply and slow-releasing by design, ColorStar supports strong root systems, enhances bloom cycles, and improves overall plant resilience. It’s the go-to fertilizer when you want your garden to shine from early spring through the end of the growing season. With ColorStar, you’ll see the difference. Feed less. Bloom more.
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We offer custom mixes at an additional $50 charge. Simply reach out!
How Ordering Works
Add your products to cart
Browse mulch, soil, stone, sand, and more. Pick the quantities you need. One simple checkout gets everything ready for your project.
Choose pick-up or local delivery
Choose pickup to have your order ready at our yard, or local delivery to bring it straight to your driveway or job site. Either way, we’ll handle the heavy lifting.
Add your information
At checkout, provide your name, phone number, and address for delivery, plus your preferred date and morning or afternoon window. This helps us schedule your order the way that works for you.
We'll see you soon!
Our team will give you a quick call to confirm your order and timing. Once everything’s set, you’re good to go—we’ll have it ready or deliver it when expected.
All About Supersacks
What are Supersacks?
What are Supersacks?
Super sacks are industrial-grade flexible bags designed to store and transport bulk materials. Rather than loose soil or material, consider it like a shopping back for your product!
How much do they cost?
How much do they cost?
Each sack is $30 in addition to the material cost.
What is the cost?
What is the cost?
All our supersacks have a flat $150 delivery fee up to 20 miles from Sienna Mulch.
What's the benefit of a Supersack over loose material?
What's the benefit of a Supersack over loose material?
This option is for the homeowner and landscaper that loves organization and cleanliness. Also, it allows you to order multiple items in one delivery.

