The minimum purchase amount is €30. It is not possible to complete orders below this amount.
Mineral Substrate for Bonsai, Conifers and Specialty Plants - Volcanic Gravel 3-6 mm (1.5L)
Volcanic Gravel is a mineral component of volcanic origin, widely used in substrate mixes for bonsai and specialty plants. With a calibrated grain size of 3 to 6 mm, it stands out for its high drainage capacity, structural stability, and excellent root aeration.
Chemically neutral, it doesn’t alter the substrate’s pH, unlike many limestone-based materials. Its low water and nutrient retention makes it an ideal addition to mixes requiring better drainage and root oxygenation.
The irregular grain structure promotes root branching and the development of fine roots, essential for bonsai health and vigour. Additionally, its low specific weight improves drainage without excessively increasing the weight of the pots.
It can be used as a substrate component or applied to the bottom of pots to facilitate water runoff and prevent waterlogging.
Features
Natural volcanic origin
Grain size: 3–6 mm
Neutral pH
Excellent drainage capacity
Promotes root aeration
Stable and durable structure
Low water retention
Lighter than many mineral alternatives
Free from residues, pests, fungi, and weed seeds
Benefits
Improves substrate drainage
Reduces the risk of compaction and root suffocation
Stimulates the development of fine roots
Contributes to healthier root growth
Doesn’t interfere with the mix’s pH
Increases the structural durability of the substrate
Recommended for
Deciduous bonsai
Evergreen bonsai
Conifers
Succulents and cacti
Orchids
Mediterranean plants
Specialty plants requiring high drainage
Use
It can be used in different proportions when formulating substrates, alongside Akadama, Kanuma, pumice, Coco Peat, or other components, to increase drainage and improve the mix’s structure.
It’s also frequently applied as a drainage layer at the bottom of pots, helping to prevent excessive water accumulation around the roots.
Why choose Volcanic Gravel?
Drainage is one of the most important factors for success in bonsai cultivation. Volcanic Gravel provides a stable and highly draining structure, contributing to a healthy root system and more efficient watering management, especially for species sensitive to excess moisture.
2,76 €
Produtos relacionados
Find out everything about our online store's delivery conditions
We work daily to ensure maximum transparency and earn our customers' trust throughout the online purchase process. If you need any further clarification, please don't hesitate to contact us (email: info@hortodocampogrande.com / T. 217 826 660 (national landline call))
The minimum purchase amount ensures the logistical viability of preparing and delivering orders, as well as maintaining the quality standards and Online Service provided by Horto do Campo Grande.
You have the following payment options available: MB Way, Multibanco Reference, Credit Card and Revolut.
Orders are only processed after payment confirmation.
After placing your order, payment must be made within 24 hours.
After this period, the order will be automatically cancelled, the delivery date scheduled when placing the order may be compromised and the availability of items placed in the shopping cart will not be guaranteed.
If the order has not yet been dispatched, you can request cancellation through our contacts. After validating the situation, we will proceed with the respective refund.
You can contact us by email at info@hortodocampogrande.com, or by phone: (+351) 217 826 660 (call to the national landline network).
Yes. Most products available in our Online Store can be delivered in mainland Portugal.
Flowers and Funeral Flowers are only available for delivery in Lisbon, Greater Lisbon and Setúbal Peninsula, in order to guarantee freshness and quality from the production of the arrangement to the moment of delivery.
Shipments to the Azores and Madeira are analyzed on a case-by-case basis. To request a quote, contact us by email at info@hortodocampogrande.com.
We currently do not make international deliveries.
Weekend deliveries are only available in the Lisbon and Greater Lisbon area, for an additional fee of €4.
There is no delivery/shipping service on weekends for:
1) Flowers and Funeral Flowers in the Setúbal Peninsula
2) Any other item from our Online Store with a delivery address outside Lisbon or Greater Lisbon (delivery service in Mainland Portugal operates from Tue to Fri, except December 25th and January 1st).
The delivery period starts counting after payment confirmation of the order.
Yes. In the purchase form you can select a delivery date, which can range from the same day (depending on the time you place the order and actually pay for it, and the product in question), up to 30 days after placing the order.
Yes, you can choose to pick up your products at one of our 3 Garden Centers (Campo Grande, Quinta da Eira-Sintra, and Fernão Ferro).
It is currently not possible to select a specific delivery time.
Order dispatch may be delayed when:
1) Stock shortages occur at the time of order preparation (common in a Garden Centre, as plants are living beings and may perish, which is why we do not guarantee the absolute availability of all products advertised in the online catalogue in suitable condition at the time of dispatch).
2) We are in special periods (e.g. Black Friday, Christmas, Public Holidays and long weekends)
3) Payment for the order is not made immediately after completing the order (Bank Transfer Ref. option), as payment expires after 24 hours and products are not necessarily reserved. As items are not necessarily reserved until payment is confirmed, stock shortages or subsequent unavailability of some products may occur.
We do not guarantee changes after completing the purchase.
However, if you detect any error, contact us as quickly as possible by email at info@hortodocampogrande.com.
Even if you manage to complete the order, to ensure effective communication during the delivery process, it is essential to provide a national phone contact (+351). We do not ensure the operation of the service with international phone contacts.
Yes. Simply place the message in the respective field of the purchase form, we will print the text on a card and it will be sent with your order.
Only one delivery attempt is planned.
We recommend that you indicate (in the notes field, available in the purchase form) a valid national phone contact (+351) and any other useful information to facilitate and enable delivery.
Yes. You can place the order today and select a future delivery date.
Floral arrangements and funeral flowers are prepared on the day of delivery, ensuring maximum freshness and quality.
Yes. We make same-day deliveries of Flowers and Funeral Flowers in Lisbon, Greater Lisbon and Setúbal Peninsula, provided payment is made by 2pm.
Yes. We provide funeral wreaths, funeral palms and other floral arrangements suitable for the occasion.
Yes. Provided the address is in one of the areas covered by our delivery service. Simply fill in the fields (church name, church address, name of the deceased, ceremony time) available in the purchase form.
Yes. Simply place the message in the respective field of the purchase form, we will print the text on a card and it will be sent with your order.
Yes. After entering your details in the purchase form, simply open the "SEND TO ANOTHER ADDRESS" box, and fill in the recipient's details. Even if you want to make a surprise, we remind you that it is essential to provide a national phone contact (+351) to enable delivery.
To guarantee the freshness and quality of floral arrangements and funeral flowers, these products are only available for delivery in Lisbon, Greater Lisbon and Setúbal Peninsula.
PURCHASES BETWEEN €30 AND €60:
Lisbon - Free delivery
Greater Lisbon - €15
Setúbal Peninsula - €25
PURCHASES OF €60 OR MORE:
Lisbon + Greater Lisbon - Free
Setúbal Peninsula - €25
For products not in the Flowers or Funeral Flowers categories, delivery costs are:
1) For purchases between €30 and €60 = €6.50
2) For purchases of €60 or more = free delivery.
Flowers and Funeral Flowers are perishable and sensitive products, handcrafted by our florists and delivered through our own distribution, on the day of delivery, to guarantee maximum freshness and quality.
For this reason, this service is only available in Lisbon, Greater Lisbon and Setúbal Peninsula, with specific delivery costs for each area.
The other products in the Online Store, such as plants, pots, substrates, fertilizers and decorative items, are dispatched by carrier to mainland Portugal, benefiting from a different logistical structure and lower delivery costs.
This distinction allows us to ensure that each product reaches its destination in the best possible conditions.
Yes. All deliveries (including Flowers and Funeral Flowers) scheduled/made at the weekend have an additional fee of €4.
However, there is no delivery/shipping service on weekends for:
1) Flowers and Funeral Flowers in the Setúbal Peninsula
2) Any other item from our Online Store with a delivery address outside Lisbon or Greater Lisbon (delivery service in Mainland Portugal operates from Tue to Fri, except December 25th and January 1st)
Yes. You can opt for free pickup at one of our Garden Centres: Campo Grande (Lisbon), Fernão Ferro and Quinta da Eira.
Campo Grande (Lisbon): Available on the same day, about 4 hours after payment confirmation.
Fernão Ferro and Quinta da Eira: Available 48 hours after payment confirmation.
No. There are products that, due to their weight, size or fragility, are only available for pickup in store.
The photographs in the Online Store are real, but have an illustrative character as they show specimens in stock at the time the products were placed in the online catalogue.
The plants supplied will be similar to those in the photographs, however, being living beings, depending on the stage of the vegetative cycle they are in, they may vary in shape, appearance or size, presenting variations compared to the images. Natural differences in shape, appearance or size may be observed (e.g.: another leaf tone, with greater or lesser leaf density, with or without flower/fruit, etc).
Our arrangements are made by professional florists using flowers indicated in the photographs, and depending on the flowers available in stock at the date of the order, there may be variations in appearance or size.
All substitutions are made seeking to respect the style, value and general composition of the arrangement presented.
In case of stock shortage of any floral species/greenery, the team will proceed with the substitution for the most identical, fresh and available flower/greenery at the time of preparation, communicating with the customer only in case of lack of a specific species that may compromise the completion of a particular arrangement.
No. For phytosanitary reasons and because it is a perishable product, we do not accept returns or exchanges of plants and other plant materials.
No. For phytosanitary reasons and because it is a perishable product, we do not accept returns or exchanges of flowers and other plant materials.
Yes. You have 14 days after receiving the order to communicate your intention to return, under the terms of current legislation. For more information, consult the "Terms and Conditions of Use", in the legal links of this site.
Contact us by email at info@hortodocampogrande.com, explaining the situation, illustrating it with photographs that demonstrate the reported situation and including a phone contact, so that we can analyze the situation and find an appropriate solution in a timely manner.
If a product runs out after purchase, we will contact you to propose a substitution, indicate the expected stock replenishment, proceed with the respective refund, or suggest some other option that resolves the situation.
When the order is dispatched by Carrier, you will receive an email with the respective tracking number.
You can contact us by email at info@hortodocampogrande.com, or by phone: (+351) 217 826 660 (call to the national landline network).
