Bulk GPS Products

Quality Quebec products at bulk prices

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from start to finish

Please note that our products are available in bulk during the COVID-19 health emergency. We will process your orders and deliver our products safely.

GPS sells bulk products from Quebec

GPS Constructions is proud to offer several quality Quebec products in bulk for all your landscaping and vegetable garden projects.

Our products are offered in a minimum quantity of half a yard and can be delivered to you for a delivery fee depending on the distance to be travelled.

During the COVID-19 health emergency, we accept orders by phone at 1-866-477-6940. You will be able to pay for your materials and shipping when you order or when we deliver. All our products are delivered from our office in Brome Lake.

Feel free to use our quantity estimator to estimate the amount of material you need for your project.

Contact us for more information.

Quantity Estimator

The bulk estimator gives an approximate value of the quantities necessary for your project.

Note that our smallest unit of measurement is the half cubic yard.

Bulk products available now

Certified organic potting soil
Organic product certified Québec Vrai

Description

Complete and ready-to-use substrate for planting and/or maintaining annual flowers, trees and shrubs as well as for the vegetable garden. It is a 100% natural amendment rich in organic matter that improves the water retention properties, porosity and fertility of the soil. This top-of-the-range, pH-balanced organic potting soil ensures prolonged fertility for most plant varieties with a minimum of work and maintenance.

Benefits

  • Approved for organic agriculture by the OCQV (Organisme de Certification Québec Vrai)
  • Weed-free
  • Increases organic matter and improves soil structure
  • Increases water retention

Ingredients

Shrimp compost

Made from residues from processing plants located in eastern Quebec.

Sphagnum Peat Moss & Humus

Sphagnum peat moss and humus from peat bogs that meet ECOCERT Canada certification criteria.

Amended in calcium lime

Certified organic garden soil
Organic product certified Québec Vrai

Description

Multi-purpose garden soil enriched with compost. High quality product ideal for gardening, planting flowers and shrubs. Weed-free, it ensures efficient plant growth after transplanting.

Benefits

  • Approved for organic agriculture by the OCQV (Organisme de Certification Québec Vrai)
  • Increases organic matter and improves soil structure
  • Increases water retention

Ingredients

Shrimp compost

Made from residues from processing plants located in eastern Quebec

Humus

Humus from peat bogs meeting ECOCERT Canada certification criteria

Sand

Amended in calcium lime

Certified organic shrimp compost
Organic product certified Québec Vrai

Description

High-quality compost composed exclusively of sphagnum peat moss, cattle manure and shrimp residues. This product is rich in fertilizing elements (N, P, K) and is an excellent source of calcium. Thanks to its marine origin, it also contains a wide variety of minor elements (Mg, Ca, Fe). It favours the general growth of the plant and the development of the root system. Ideal for organic fertilization of all types of plants, gardening, tree and shrub planting, etc.

Benefits

  • Approved for organic agriculture by the OCQV (Organisme de Certification Québec Vrai)
  • Weed-free
  • Increases organic matter and improves soil structure
  • Increases water retention
  • Provides an important nutritional supplement to plants
  • Source of calcium playing a major role in cell development

Ingredients

Shrimp residues

From processing plants located in Eastern Quebec

Cattle manure

From Lower St. Lawrence beef cattle farms

Sphagnum peat moss & Humus

Sphagnum peat moss and humus from peat bogs that meet ECOCERT Canada certification criteria.

Amended in calcium lime

Natural Cedar Mulch

Highly resistant to decomposition

Composed of 100% cedar bark and wood, this decorative mulch is very fibrous and is known for its resistance to degradation. Its homogeneous texture and fine granulometry make it a superior quality mulch, 100% natural.

It eliminates weed germination and growth and reduces the need for frequent watering by reducing the evaporation of water from the soil.

Washed river stones

Some landscaping projects require a more elaborate finishing touch. A driveway, for example, will look much more visually appealing if you use a small river pebble, rather than just a conventional crusher. A sidewalk will take on a whole new look and will be especially maintenance-free with medium river pebbles. The contour of the pool will have a high-end look with a medium size pebble in addition to promoting natural drainage. A flowerbed decorated with large pebbles will become a work worthy of professional landscaping that will be the envy of your neighbourhood. In short, when you use the river pebble, you are selecting a material of choice for the finishing touches to your landscaping projects and flowerbeds.

We offer river stone in the following formats:

  • River stone 3/8'' to 1/2''
  • River stone 1 to 2''
  • River stone 2 to 4''
Sand and gravel

We offer all the crushed gravel and sand products you need for your projects in terms of soil compaction, drainage, surfacing and finishing including :

  • Sand
  • Crushed stone 3/4 net
  • Crushed stone 0-1/8
  • Crushed stone 0- 3/4 (MG20)

Contact us at
1-866-477-6940
to order these products now.

Other products we offer

  • Top soil
  • Natural patio stone
  • Stone steps

Contact us for more information about these other products.

Sowing calendar

We offer you a seeding calendar for various plants for your information so that you can plant and seed your plants in a timely manner in our region. Note that several hardiness zones are present in our region as well as certain microclimate zones. Adjust the calendar according to your reality. Happy gardening!

PlantSowing indoorsSowing outdoorsPlanting outdoors
GarlicOct. or early May
EggplantEnd of MarchEarly June
Swiss chardMid-AprilMid-MayMid-May
BeetrootMid-May
BroccoliMid-AprilMay
CarrotMid-May
CeleryMid-MarchMid to end of May
CeleriacMid-MarchMid to end of May
Ground cherryEnd of MarchEarly June
ChicoryEarly July
Chinese cabbageEarly July
Brussels sproutMid-AprilMid to end of May
Siam CabbageMid-May
CauliflowerMid-AprilEnd of May
Soy cabbageMid-AprilMay
ChivesMarchMid-MayEarly June
PumpkinEarly MayMid-MayEarly June
CucumberEarly MayEnd of MayEarly June
Spring ShallotEarly May
Autumn shallotEnd of August
SpinachMid-May
Beans (yellow or green)End of May to end of June
Curly lettuceMid-AprilEarly MayEnd of May
Head lettuceMid-AprilEnd of May
CornMid-May
Netted melonMid to end of AprilEarly June
WatermelonMid to end of AprilEarly June
TurnipMid-May
OnionEarly MarchMid-May (to be booted)
ParsnipMid-May
ParsleyEarly MarchEarly MayEarly May
Chilli (pepper)End of MarchEarly June
LeekEarly MarchEarly May
PeasMid-May
PotatoEarly May
RadishMay-June
SalsifyMid-May
TomatoLate March to mid-AprilEarly June