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Ships within 48 hours · Estimated delivery Jun 13 - Jun 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
Montana SI Silica Powder 5LBMontana SI Silica Powder 5LB is a highly effective organic supplement for your plants. Its volcanic ash base helps promote fertility, encourage photosynthesis, and strengthen plant structure. Additionally, it improves disease & pest resistance, thanks to its rich source of silicon and potassium. Trust in 40 million year old soil science for healthy, strong plant growth.

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 309 reviews
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Product Reviews
★★★★★ 5
Perfect for learning APA format
Format: Spiral-bound
If you are one learning how to write, cite and use references in APA format this is the perfect book for you. It literally breaks down everything for you and has examples of what to do. It has an example essay if you need something to reference as well. I'd recommend this book to anyone that has a strict professor or that is learning how to write APA.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 5
APA Guide, what you need for college papers
Format: Spiral-bound
It has the information that I need for my college classes, though the text could be a little bigger for better legibility.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
★★★★★ 5
Great resource to find quick APA style answers
Format: Spiral-bound
Great desk resource. As a tutor, I can quickly find accurate info for the questions my tutoring students ask about their essays.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 4
Font size small, hard to read
Format: Spiral-bound
Item received as described and on time, my only issue is how small the font it. Makes it hard to find what you're looking for
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Reviewed in the United States on April 14, 2025
★★★★★ 5
Great Item!
Format: Spiral-bound
As advertised and quick delivery!
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Reviewed in the United States on January 3, 2026
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