Robert Pavlis is a chemist, Master Gardener, speaker, blogger, and owner and developer of Aspen Grove Gardens, a 6-acre botanical garden featuring 3,000 varieties of plants. He is the award-winning author of many published works, including the popular Soil Science for Gardeners series and Building Natural Ponds. Robert lives in Guelph, Canada.
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Building Natural Ponds
Regular price $24.99 Save $-24.99Build a natural pond for wildlife, beauty, and quiet contemplation
Typical backyard ponds are a complicated mess of pipes, pumps, filters, and nasty chemicals designed to adjust pH and keep algae at bay. Hardly the bucolic, natural ecosystem beloved by dragonflies, frogs, and songbirds.
The antidote is a natural pond, free of hassle, cost, and complexity and designed as a fully functional ecosystem, ideal for biodiversity, swimming, irrigation, and quiet contemplation.
Building Natural Ponds is the first step-by-step guide to designing and building natural ponds that use no pumps, filters, chemicals, or electricity and mimic native ponds in both aesthetics and functionality. Highly illustrated with how-to drawings and photographs, coverage includes:
- Understanding pond ecosystems and natural algae control
- Planning, design, siting, and pond aesthetics
- Step-by-step guidance for construction, plants and fish, and maintenance and trouble shooting
- Scaling up to large ponds, pools, bogs, and rain gardens.
Whether you're a backyard gardener looking to add a small serene natural water feature or a homesteader with visions of a large pond for fish, swimming, and irrigation, Building Natural Ponds is the complete guide to building ponds in tune with nature, where plants, insects, and amphibians thrive in blissful serenity.
Robert Pavlis , a Master Gardener with over 40 years of gardening experience, is owner and developer of Aspen Grove Gardens, a six-acre botanical garden featuring over 2,500 varieties of plants. A well-respected speaker and teacher, Robert has published articles in Mother Earth News , Ontario Gardening magazine, the widely read blog GardenMyths.com, which explodes common gardening myths and gardening information site GardenFundamentals.com.

Compost Science for Gardeners
Regular price $24.99 Save $-24.99Create your own compost and grow better plants.
With breathtaking clarity, Compost Science for Gardeners demystifies composting practices and helps readers determine the best technique for their unique situation. This comprehensive science-based book is your key to building healthier soil and growing better plants.
Using plain language and easy-to-follow instructions, this essential resource distills and blends the latest scientific research with the author's many decades of knowledge and experience into manageable form, debunking a host of common gardening myths along the way. Learn about:
- The role of composting in the ecological cycle
- Compostable materials to incorporate and those to avoid
- Browns and greens vs the carbon-to-nitrogen ratio
- The full range of composting methods, including cold and hot composting; composting in piles, bins, and tumblers; and pit and trench composting
- Keyhole gardening, food digesters, vermicomposting, bokashi, eco-enzyme fermentation, and more
- The relative merits and impact on the environment of each composting technique
- Using finished compost to improve soil health
Anyone can compost. Whether you are a balcony or backyard gardener, market gardener, small-scale farmer, or homesteader, or even if you are simply looking for a way to keep organic matter out of the landfill, this book will show you how to do it simply, safely, and sensibly.

Food Science for Gardeners
Regular price $22.99 Save $-22.99Everyone's guide to using the power of science to produce healthier and tastier fruits and vegetables
From garden to fork, Food Science for Gardeners is everyone's guide to optimizing the quality of garden produce and preparing the most delicious and nutritious food possible.
Beginning with a high-level overview of food quality and nutrient density, this invaluable resource then takes a deep, but accessible, dive into:
- The essential nutrient groups as well as phytonutrients and their anti-oxidant properties
- Factors affecting food safety such as pesticides, microplastics, bacteria, and other forms of chemical and biological contamination
- The pros and cons of a host of approaches to food storage and preservation, as well as an extensive variety of cooking methods
- Gardening techniques for growing nutritious food
- A complete section dedicated to the best growing methods for common fruits and vegetables.
Whether you're a home gardener, local food enthusiast, or small-scale farmer, Food Science for Gardeners demystifies the science of food, enabling you to put the best quality vegetables and fruits on your plate.

Microbe Science for Gardeners
Regular price $22.99 Save $-22.99Useful and practical gardening advice.
–Jeff Lowenfels, author, the Teaming Series and DIY Autoflowering Cannabis
Microscopic organisms are as important to plant growth as water and light. Microbe Science for Gardeners highlights the essential role of microbes in plant biosystems and soil health, providing practical how-to gardening advice for enhancing plant microbiomes, and debunking common gardening myths.
Going beyond soil biology to examine the crucial role of microorganisms in cultivating a productive garden, this accessible guide covers:
- The interrelationships in microbe populations and between microbes and plants
- Understanding microbes such as bacteria, yeast, mycorrhizal fungi, and protozoa, both in the rhizosphere and above ground
- How common practices such as tilling, crop rotation, and mulching affect the microbe community
- How the savvy gardener can encourage beneficial microorganisms while discouraging those that cause disease or other undesirable effects
- An objective analysis of popularized practices such as controlling fungal-to- bacterial ratios and applying biostimulants, compost tea, or plant probiotics
- Prevention and cures for dozens of bacterial, viral, and fungal plant diseases.
Whether you're a home gardener, market gardener, or micro-farmer, Microbe Science for Gardeners will help you leverage the incredible power of the mighty microbe to grow healthy, strong, thriving plants.

Plant Science for Gardeners
Regular price $22.99 Save $-22.99A little plant science grows a long way
Plant Science for Gardeners empowers growers to analyze common problems, find solutions, and make better decisions in the garden for optimal plant health and productivity.
Most gardeners learn by accumulating rules – water once a week, never dry out snowdrop bulbs, prune lilacs after flowering, plant garlic in October—the list is endless.
Rules take years to learn and yet leave you floundering when the unexpected strikes and plants look unhealthy, produce poorly, or die.
There is a better way.
By understanding the basic biology of how plants grow, you can become a thinking gardener with the confidence to problem solve for optimized plant health and productivity. Learn the science and ditch the rules! Coverage includes:
- The biology of roots, stems, leaves, and flowers
- Understanding how plants function as whole organisms
- The role of nutrients and inputs
- Vegetables, flowers, grasses, and trees and shrubs
- Propagation and genetics
- Sidebars that explode common gardening myths
- Tips for evaluating plant problems and finding solutions.
Whether you're a home gardener, micro-farmer, market gardener, or homesteader, this entertaining and accessible guide shortens the learning curve and gives you the knowledge to succeed no matter where you live.
AWARDS
- SILVER (tie) | 2023 IPPY Awards: Science

Soil Science for Gardeners
Regular price $22.99 Save $-22.99Build healthy soil and grow better plants
Robert Pavlis, a gardener for over four decades, debunks common soil myths, explores the rhizosphere, and provides a personalized soil fertility improvement program in this three-part popular science guidebook.
Healthy soil means thriving plants. Yet untangling the soil food web and optimizing your soil health is beyond most gardeners, many of whom lack an in-depth knowledge of the soil ecosystem.
Soil Science for Gardeners is an accessible, science-based guide to understanding soil fertility and, in particular, the rhizosphere – the thin layer of liquid and soil surrounding plant roots, so vital to plant health.
Coverage includes:
- Soil biology and chemistry and how plants and soil interact
- Common soil health problems, including analyzing soil's fertility and plant nutrients
- The creation of a personalized plan for improving your soil fertility, including setting priorities and goals in a cost-effective, realistic time frame.
- Creating the optimal conditions for nature to do the heavy lifting of building soil fertility
Written for the home gardener, market gardener, and micro-farmer, Soil Science for Gardeners is packed with information to help you grow thriving plants.
