Seasonal Resources
A Seasonal Gardening Guide for Healthy Plants
Healthy gardens are built season by season. This required article introduction appears before all flexible Page Builder content. Plan for every
Growing Stronger Communities Through Horticulture
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Healthy gardens are built season by season. This required article introduction appears before all flexible Page Builder content.
Plan for every season
Observe changing light, moisture, and temperature, then adjust watering, pruning, planting, and soil care as conditions change.
Growing Philadelphia’s green future, one garden at a time
For nearly two centuries PHS has used horticulture to advance the health and well-being of the Greater Philadelphia region. From neighborhood tree plantings to the Philadelphia Flower Show, our work connects people with plants and with one another. Learn how our programs work, and see how an old idea a time-tested idea keeps growing into something new every season.
Text wrapping around a right aligned image within the WYSIWYG editor. Our Tree Tenders volunteers have planted more than 10,000 trees across the region, and our community gardens program supports over 150 gardens. Each site is stewarded by neighbors who know their block best, with PHS providing plants, tools, training and a network of fellow gardeners to lean on when the season gets tough.
What we focus on
- Planting and caring for trees where canopy is thinnest.
- Supporting community gardens and urban farms.
- Transforming vacant land into safe, green spaces.
- Creating pathways to green jobs.
- Bringing the joy of gardening to everyone.
How you can get involved
- Become a PHS member.
- Volunteer at a garden near you.
- Attend a workshop or garden tour.
- Visit the Philadelphia Flower Show.
- Make a gift to support our work.
I’m motivated to stay involved with PHS because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
Julia Fisher, PHS Member
Whether you have a windowsill or a whole block, there is a place for you in this work. Explore our upcoming events, find a garden near you, or reach out to our team to start a conversation.
Spring pruning basics
A good prune is less about cutting and more about reading the plant. Before you pick up the shears, walk around the shrub and look for the three Ds: dead, damaged and diseased wood.
Start with the three Ds, then step back. Most flowering shrubs only need a light thinning to open up the center and let light reach the interior. Cut back to a bud or a branch junction, keep your tools sharp, and resist the urge to shear everything into a ball.
Timing by plant type
- Spring bloomers (lilac, forsythia)
- Prune right after flowering.
- Remove up to a third of the oldest stems.
- Summer bloomers (hydrangea paniculata, butterfly bush)
- Prune in late winter before growth starts.
- Evergreens: only light shaping, never into bare wood.
Tools worth owning
- Bypass pruners
- Loppers
- A folding pruning saw
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Gardening taught me patience I did not know I had. You put something in the ground in March, you water it when it is dry and you trust that the work is happening underground where you cannot see it. By June the whole block is different, and so are the people who show up every Saturday to keep it going. That is what PHS made possible on our corner.”
Marcus Bell, Garden Steward, Strawberry Mansion
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—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS
because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS
because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS
because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
—Julia Fisher, PHS MemberI’m motivated to stay involved with PHS because of the multifaceted ways that PHS engages with people in the city by bringing people together to find beauty through horticulture. I give to PHS because it’s my investment in the things I care about.”
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Explore common gardening questions
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Gardeners make communities stronger, healthier, and more connected.
PHS community member
A garden is a place where curiosity becomes care and care becomes action.
PHS community member
Every planted space can become a welcoming habitat for people and pollinators.
PHS community member
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12
Programs
Using Bellflower.
Text & 2 Stats
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24%
Partners
Using Berry Bloom.
1.2M
Annual reach
Using Blossom Cluster.
1.2M
Annual reach
Using Blossom Cluster.
86%
On track
Using Coral Sprig.
12M+
Years served
Using Curling Bloom.
Text & 4 Stats
A quick view of outcomes across our community programs.
86%
On track
Using Coral Sprig.
12M+
Years served
Using Curling Bloom.
2.4M
Members
Using Daisy Pair.
1.2M+
Total grants
Using Daisy Vine.
Text & 1 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
12M+
Years served
Using Curling Bloom.
Text & 2 Stats
A quick view of outcomes across our community programs.
2.4M
Members
Using Daisy Pair.
1.2M+
Total grants
Using Daisy Vine.
1.2M+
Total grants
Using Daisy Vine.
24.5K
Households
Using Double Bloom.
12
Programs
Using Drooping Bloom.
Text & 4 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
24.5K
Households
Using Double Bloom.
12
Programs
Using Drooping Bloom.
24%
Partners
Using Fan Leaf.
1.2M
Annual reach
Using Fern Sprig.
12
Programs
Using Drooping Bloom.
Text & 2 Stats
A quick view of outcomes across our community programs.
24%
Partners
Using Fan Leaf.
1.2M
Annual reach
Using Fern Sprig.
Text & 3 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
1.2M
Annual reach
Using Fern Sprig.
86%
On track
Using Floral Lattice.
12M+
Years served
Using Iris Sweep.
Text & 4 Stats
A quick view of outcomes across our community programs.
86%
On track
Using Floral Lattice.
12M+
Years served
Using Iris Sweep.
2.4M
Members
Using Leaf Branch.
1.2M+
Total grants
Using Leaf Swoop.
12M+
Years served
Using Iris Sweep.
Text & 2 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
2.4M
Members
Using Leaf Branch.
1.2M+
Total grants
Using Leaf Swoop.
1.2M+
Total grants
Using Leaf Swoop.
24.5K
Households
Using Lobed Sprig.
12
Programs
Using Low Branch.
Text & 4 Stats
A quick view of outcomes across our community programs.
24.5K
Households
Using Lobed Sprig.
12
Programs
Using Low Branch.
24%
Partners
Using Maple Leaf.
1.2M
Annual reach
Using Maple Sprig.
Text & 1 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
12
Programs
Using Low Branch.
Text & 2 Stats
A quick view of outcomes across our community programs.
24%
Partners
Using Maple Leaf.
1.2M
Annual reach
Using Maple Sprig.
1.2M
Annual reach
Using Maple Sprig.
86%
On track
Using Oak Branch.
12M+
Years served
Using Oak Sprig.
Text & 4 Stats
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86%
On track
Using Oak Branch.
12M+
Years served
Using Oak Sprig.
2.4M
Members
Using Petal Cross.
1.2M+
Total grants
Using Radial Bloom.
12M+
Years served
Using Oak Sprig.
Text & 2 Stats
A quick view of outcomes across our community programs.
2.4M
Members
Using Petal Cross.
1.2M+
Total grants
Using Radial Bloom.
Text & 3 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
1.2M+
Total grants
Using Radial Bloom.
24.5K
Households
Using Ribbon Grass.
12
Programs
Using Bellflower.
Text & 4 Stats
A quick view of outcomes across our community programs.
24.5K
Households
Using Ribbon Grass.
12
Programs
Using Bellflower.
24%
Partners
Using Berry Bloom.
1.2M
Annual reach
Using Blossom Cluster.
Text & 1 Stats
A quick view of outcomes across our community programs.
12
Programs
Using Bellflower.
Text & 2 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
24%
Partners
Using Berry Bloom.
1.2M
Annual reach
Using Blossom Cluster.
Text & 3 Stats
A quick view of outcomes across our community programs.
1.2M
Annual reach
Using Blossom Cluster.
86%
On track
Using Coral Sprig.
12M+
Years served
Using Curling Bloom.
Text & 4 Stats
A quick view of outcomes across our community programs.
86%
On track
Using Coral Sprig.
12M+
Years served
Using Curling Bloom.
2.4M
Members
Using Daisy Pair.
1.2M+
Total grants
Using Daisy Vine.
Text & 1 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
12M+
Years served
Using Curling Bloom.
Text & 2 Stats
A quick view of outcomes across our community programs.
2.4M
Members
Using Daisy Pair.
1.2M+
Total grants
Using Daisy Vine.
Text & 3 Stats
A quick view of outcomes across our community programs.
1.2M+
Total grants
Using Daisy Vine.
24.5K
Households
Using Double Bloom.
12
Programs
Using Drooping Bloom.
Text & 4 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
24.5K
Households
Using Double Bloom.
12
Programs
Using Drooping Bloom.
24%
Partners
Using Fan Leaf.
1.2M
Annual reach
Using Fern Sprig.
Text & 1 Stats
A quick view of outcomes across our community programs.
12
Programs
Using Drooping Bloom.
Text & 2 Stats
A quick view of outcomes across our community programs.
24%
Partners
Using Fan Leaf.
1.2M
Annual reach
Using Fern Sprig.
Text & 3 Stats
Lorem ipsum dolor sit amet consectetur. Augue rutrum eget urna duis. Id ac amet mattis facilisis lorem bibendum phasellus. In lobortis dui ut gravida orci augue mi magna. Commodo aliquam turpis vestibulum sed fames id amet mattis. Nullam nunc sed velit quam sollicitudin vel egestas nunc sit. Pellentesque eu donec nulla porta amet faucibus proin.
1.2M
Annual reach
Using Fern Sprig.
86%
On track
Using Floral Lattice.
12M+
Years served
Using Iris Sweep.
Text & 4 Stats
A quick view of outcomes across our community programs.
86%
On track
Using Floral Lattice.
12M+
Years served
Using Iris Sweep.
2.4M
Members
Using Leaf Branch.
1.2M+
Total grants
Using Leaf Swoop.
People & Spotlights
PHS Community
Community & Events
Community Impact
Urban Greening
200 Years of Growing Philly
For 200 years, the Pennsylvania Horticultural Society has helped shape the Philadelphia region through the power of gardening. Discover the people, milestones, and enduring impact behind its legacy, and the bold vision guiding PHS into its third century.