Fertilizer
Fertilizer
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Premium Potting Mix
Perfect for all types of plants
+ $19
Moisture Meter
Measure moisture, pH levels, and light
+ $20
Fertilizer Care & Information
Our all-natural fertilizer is specifically formulated to supply macronutrients and essential trace elements in one easy-to-use liquid concentrate. Designed for use on indoor plants for optimal growth, but can be used on outdoor plants as well. Nutritionally complete and creates less salt buildup than other fertilizers. Made in the USA.
- 9-3-6 NPK ratio
- Bottle contains 8 fl oz (approximately 40 applications)
- Made in the USA
- Not eligible for discounts or promotions
Why Choose The Sill?
30 Day Guarantee
Your plants will arrive in happy, healthy condition—guaranteed. If not, we replace them for free. Learn more about our guarantee.
Fast, Free Shipping
We offer free standard shipping on all orders $79+. Orders under $79 ship for a flat $15 fee. View our full shipping policy.
Plant Care Workshops & Events
The Sill offers a variety of plant care workshops for beginners, experts, & everyone in between! No questions too small or too silly! View upcoming schedule.
Virtual Plant Appointments
Chat directly via video with a knowledgeable houseplant expert from The Sill team about plant-specific care, repotting tips and tricks, pest identification, and more. Schedule an appointment today.
