Master Gardeners of Ontario · Halton & Hamilton Region

2026 Newsletters

Cross Pollination is the Halton Region Master Gardeners monthly email newsletter. It is crafted by our Master Gardeners and packed with seasonal tips.

Plants and handwritten notes

Current Issue

2026 October Cross Pollination

  • Feature – Staghorn Sumac (Rhus typhina)
  • Monthly Garden ‘To-Do’ List.
  • Monarch Award Recipients!
  • CCIPR: A whirlwind tour of Canada’s invasive plant problem
  • Spotlight on Science: Are we keeping our gardens awake at night?
  • Question of the Month – My soil is dead! How can I bring it back to life?
  • Garden Inspiration – A Monarch’s Journey
  • What’s Growing On

Earlier 2026 Issues

2026 September Cross Pollination

  • Feature – Culver’s Root, Veronicastrum virginicum
  • Monthly Garden ‘To-Do’ List
  • Building a raised vegetable bed: Let winter do the work for you
  • Question of the Month – Managing rabbits in the garden
  • Garden Journeys Open Days – Thank you
  • The Monarch Journey – Thank you
  • Garden Inspiration – Why are there different shapes of flowers?
  • What’s Growing On

2026 July Cross Pollination

  • Feature – Ninebark (Physocarpus opulifolius)
  • Before you Reach for the Saw!
  • Parsley and Bay Laurel
  • Spotlight on Science – What Happens to Vegetables During a Heat Wave?
  • Question of the Month – The Value of Community Gardens
  • Garden Inspiration – Unbeweevilble!
  • What’s Growing On

2026 August Cross Pollination

  • Feature – Northern Bush Honeysuckle, Diervilla lonicera
  • Monthly Garden ‘To-Do’ List
  • Lavender’s Blue, Lavender’s Green
  • Question of the Month – Plant I.D. Apps
  • Garden Inspiration – Sedges for Edges
  • Garden Journeys Open Days
  • The Monarch Journey
  • What’s Growing On

2026 May Cross Pollination

  • Early Meadow Rue (Thalictrum dioicum)
  • Monthly Garden ‘To-Do’ List
  • Native Plant Sale: June 6, 2026, 9:30 a.m. to 1 p.m.
  • Spotlight on Science: Compost vs Fertilizer
  • Question of the Month: Gardening with Children
  • Garden Inspiration: A Bouquet of Gardening Emotions
  • What’s On (News and Events)

2026 June Cross Pollination

  • Prairie Pasqueflower (Pulsatilla nuttalliana)
  • Monthly Garden ‘To-Do’ List
  • Finding Harmony in the Garden: An Informed Approach to Animal ‘Pests’ in the Garden
  • Native Plant Sale: June 6, 2026, 9:30 a.m. to 1 p.m.
  • Spotlight on Science: Why Delphiniums Are Making a Royal Comeback
  • Question of the Month: Growing veggies in your front yard!
  • Garden Inspiration: Gnome Is Where the Heart Is
  • What’s On (News and Events)

2026 March Cross Pollination

  • Spring Beauty – Claytonia virginica
  • Monthly Garden ‘To-Do’ List
  • Image Prairie Moon Nursery
  • Spotlight on Science – The Science of Zinnia Breeding
  • Question of the Month – Why Keep a Garden Journal?
  • Garden Inspiration – Why Native Plants Matter
  • What’s On (News and Events)

2026 April Cross Pollination

  • Jack-in-the-Pulpit (Arisaema triphyllum)
  • Monthly Garden ‘To-Do’ List
  • Our Garden Superheroes – Recognized with National Innovation Award
  • Question of the Month: Gardening for Birds
  • Garden Inspiration: It’s a Grass, Grass, Grass
  • What’s On (News and Events)

2026 January

No issue in January. Happy Holidays!

2026 February Cross Pollination

  • Common Snowberry (Symphoricarpos albus)
  • Editing Plants for a ChangingClimate
  • A Gentle Look At Ruderals
  • Monthly Garden ‘To-Do’ List
  • Garden Inspiration: Finding Garden Wisdom in Winter
  • Question of the Month: Gardening with Pets
  • What’s On (News and Events)

What’s in Each Issue

  • a monthly plant feature
  • monthly gardening ‘to-do’ list
  • in depth articles on a wide range of gardening topics
  • garden inspiration
  • question of the month
  • gardening events in the community

Further Info

  • The newsletter is delivered once a month, except January
  • You can unsubscribe at any time
  • Add haltonmastergardeners@gmail.com as a contact to be sure it goes to your email inbox
  • Search for articles using our Newsletter Index

Ask a Master Gardener

Questions about plants, pests, pruning or becoming a Master Gardener? Our volunteers are happy to help.


Cross Pollination

Our free monthly newsletter, written by Master Gardeners and full of science-based, seasonal advice.

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