Serres Lavoie

Black volcanic stone

13.99 $

Black lava, also known as basalt, is a volcanic rock derived from the solidification of basaltic magma. Characterized by its dark, almost black color, it is widespread across the Earth's surface, often forming volcanic landscapes and geologically active regions. 

Black lava has a dense, solid texture, the result of slower cooling than that which gives rise to red lava. It may have a uniform structure or present distinct mineral formations, depending on the minerals of which it is composed. In horticulture, black lava has several important uses:

  1. Soil drainage and aeration: Thanks to its density and porous structure, black lava can be mixed with soil to improve drainage and aeration. It promotes the movement of water and air in the soil, creating a favorable environment for plant roots.

  2. Water and nutrient retention: Although black lava is draining, it can also retain small quantities of water and nutrients in its pores, such as iron, magnesium and calcium. This can help provide a reserve of moisture and nutrients accessible to plants, particularly during dry periods.

  3. Ground temperature control: Because black lava can absorb and retain heat, it can help regulate ground temperature. This can be particularly useful in climates with wide temperature variations.

  4. Potting systems: Black lava is often included in substrate mixes for potted plants. It adds solid structure to the mix while improving drainage.

pH Slightly alkaline


Territories and periods served:

We deliver all year and anywhere in Canada. 


We pride ourselves on the quality of our products and place particular importance on the delivery methods used and the speed of service. That's why we only work with reputable transport companies that offer affordable rates and allow you to track your package in real time to its final destination. When the order leaves our greenhouses, the carrier takes over your order. We are not responsible for the risks involved in transport. Please contact the transport company directly. 

You must be present when your package is delivered, as we require a signature upon delivery. It is your responsibility to send us an email prior to delivery to advise us of your absence. If you prefer delivery without a signature, please let us know when you place your order. However, you are solely responsible for any theft or damage due to bad weather.

Delivery price:

    The prices are established according to the exact weight of the package, and not according to a pre-established charter. You can therefore be sure to pay the exact price of your order. We do business with several delivery companies, which allows us to offer you the best price and the fastest and most efficient carrier.

    Preparation of orders:

    An acknowledgement of receipt will be sent to you following the confirmation of your purchase. We ship everywhere in Canada only from Monday to Wednesday in order to avoid that our parcels stay at the post office on weekends. Local delivery is available from Monday to Saturday for the greater metropolitan area. You will receive your tracking number as soon as your order is processed and shipped, along with the expected delivery date. This number will allow you to know the status of your order in real time until its final destination. Please check your spam box if you do not receive a confirmation email. We do not give any delivery time due to the large quantity of orders to prepare.

    Orders cancellation:

    Do you want to cancel an order you have placed? We can only issue a refund if the order has not yet been prepared and/or shipped.

    Combine your order with an existing one

    We offer you the possibility to combine your purchases made on our online shop only if your order is not in preparation. Only orders to be shipped to the same address and name can be combined. 

    Winter Expedition

    During the winter months, insulation packaging + heating package are included in the transport costs. In case of extreme cold, we reserve the right to suspend deliveries until suitable temperatures return.

    Pickup in store:

    In order to provide you with quality plants, we ask that you pick up your confirmed orders, ready for shop pick-up, within 4 days of your confirmation email. 


    All our plants are final sales. 

    However, if you have received an order that is damaged, incorrect or has a phytosanitary problem, please contact us within 48 hours of receipt at Please Include a photo of the product, its packaging and your order number. We will evaluate the situation and let you know afterwards if we proceed with the replacement of the product or a credit note.

    Contact us:

    In order to constantly improve our service, we invite you to write to us at to leave us your comments and suggestions about our delivery service and your experience in general.