Secret Jardin Dark Street V4 90 3' x 3' x 6' Hydroponic Grow Tent

The Secret Jardin Dark Street V4 90 is a premium compact grow tent designed for gardeners who want a professional quality 3' x 3' growing environment with strong light control, dependable steel construction, and a complete accessory system for indoor growing.

With assembled dimensions of approximately 3 feet wide by 3 feet deep by 6 feet tall, the DS90 provides roughly 9 square feet of floor space and approximately 1.4 cubic meters of internal volume.

• Grow Space: Approximately 9 sq. ft.
• Reflectivity: 95% Reflective Interior
• Frame: 16 mm Q195 Steel
• Ventilation: DF16 Compatible

The compact square footprint makes it a strong choice for closets, spare rooms, bedrooms, utility areas, and other spaces where a larger tent would be difficult to fit.

The enclosure uses Secret Jardin M210D reflective fabric designed to provide strong light containment while maximizing the usefulness of the installed lighting system.

The interior offers approximately 95% reflectivity, helping redirect light back toward the canopy instead of allowing it to be absorbed by the walls.

The reflective surface also helps distribute light into outer and lower canopy areas, supporting more even coverage across the full 3' x 3' footprint.

The frame uses 16 mm Q195 steel poles paired with reinforced polypropylene corner connectors. This gives the enclosure a stronger structure than lightweight entry level tents while still keeping assembly straightforward.

The Dark Street V4 platform also supports Secret Jardin DF16 ducting flange technology for organized intake and exhaust routing.

The supplied accessory package includes StrapIT filter straps, HookIT lighting hooks, 15 CableIT cable clips, PocketIT adjustable tool storage, a Space Booster, and PatchIT repair material.

The included Space Booster helps prevent the tent walls from pulling inward when exhaust equipment creates negative pressure. This helps preserve usable canopy space and can also support a compatible WebIT or WebTH trellis system.

A removable Water Tray 90 is included to help protect the floor of the enclosure from irrigation runoff, spilled water, growing media, and routine gardening debris.

The tent is designed for plants approximately 50 cm to 150 cm tall, giving growers flexibility for propagation, vegetative growth, and full cycle indoor gardening when paired with appropriately sized lighting and environmental equipment.

The combination of a compact 3' x 3' footprint, approximately 95% reflective Mylar, Q195 steel framing, DF16 ventilation compatibility, Space Booster support, waterproof floor protection, and a full accessory package makes the Secret Jardin Dark Street V4 90 an excellent option for small indoor gardens.

3' x 3' Growing Footprint

The DS90 provides approximately 9 square feet of floor space. The square layout works well with 3' x 3' LED grow lights, multiple small or medium plant containers, trellis systems, propagation trays, fabric pots, compact hydroponic systems, environmental sensors, and circulation fans.

Approximately 6 Foot Height

The enclosure measures approximately 6 feet tall. This provides vertical space for plant containers, mature plants, suspended lighting, carbon filters, inline fans, environmental equipment, trellis systems, and hanging hardware.

Approximately 1.4 m³ Internal Volume

The DS90 provides approximately 1.4 cubic meters of internal volume. This gives growers enough enclosed space for a complete small scale indoor garden while keeping ventilation requirements manageable.

M210D Reflective Fabric

The Dark Street V4 90 uses M210D reflective fabric. The material is designed to provide strong light containment, durable enclosure walls, reliable environmental separation, reflective interior performance, and long term indoor use.

95% Reflective Interior

The interior provides approximately 95% light reflectivity. This helps redirect light toward the canopy, reduce wasted light, improve side illumination, improve lower canopy exposure, reduce dim corners, and make better use of the installed fixture.

Improved Light Distribution

The reflective interior helps spread light throughout the 3' x 3' enclosure. This can support more even illumination around central plants, outer canopy edges, lower foliage, corners, and gaps between containers.

Light Proof Construction

The DS90 is designed to create a controlled lighting environment. Its construction helps reduce unwanted light entering or escaping through fabric walls, seams, equipment openings, door closures, and ducting areas.

Q195 Steel Frame

The frame uses 16 mm Q195 steel poles. This provides reliable structural support, better resistance to flex, stronger equipment support, stable enclosure alignment, and long term durability.

Reinforced Polypropylene Corners

Reinforced polypropylene corner connectors secure the steel frame. These help keep frame sections aligned, reduce unwanted movement, simplify assembly, and support repeated setup and breakdown.

DF16 Ducting Flange Compatibility

The Dark Street V4 platform supports Secret Jardin DF16 ducting flange technology. This system can be used to manage intake airflow, exhaust airflow, flexible ducting, inline fans, carbon filtration, and environmental ventilation.

Tight Port Closure

The V4 port system is designed to close securely around compatible ducting and cables. Properly cinched ports help reduce unwanted light leakage, improve air control, keep ducting organized, maintain negative pressure, and improve environmental stability.

Space Booster Included

The included Space Booster helps prevent fabric walls from pulling inward under negative pressure. This helps preserve usable canopy area, maintain the enclosure shape, keep fabric away from foliage, improve outer plant clearance, and support compatible trellis systems.

Negative Pressure Management

When exhaust equipment removes air from the tent faster than fresh air enters, the walls can contract inward. The Space Booster helps maintain full canopy width, better plant spacing, greater usable floor area, and improved airflow around outer plants.

WebIT and WebTH Support

The Space Booster can support compatible Secret Jardin WebIT or WebTH systems. These systems can help growers spread branches evenly, maintain canopy height, support plant growth, improve light exposure, and organize the garden.

StrapIT Filter Straps

One pair of StrapIT straps is included. These can help support compatible carbon filters, ventilation components, and lightweight overhead equipment. Always confirm appropriate equipment load limits before installation.

HookIT Lighting Hooks

One pair of HookIT lighting hooks is included. These help simplify fixture installation, keep lighting hardware organized, make hanging adjustments easier, and reduce improvised mounting solutions.

15 CableIT Clips

The DS90 includes 15 CableIT clips. These can help organize lighting cords, fan cables, sensor wires, controller cables, trellis lines, and monitoring equipment.

PocketIT Adjustable Tool Pouch

PocketIT provides convenient interior storage. It can hold items such as plant ties, garden scissors, thermometers, pH meters, EC meters, measuring tools, and small accessories.

PatchIT Repair Accessory

PatchIT is included for minor repairs or for replacing a DF16 location when the ventilation layout changes. This gives growers additional flexibility when reconfiguring the tent.

Water Tray 90 Included

The removable Water Tray 90 helps protect the enclosure floor. It can contain water spills, irrigation runoff, growing media, plant debris, nutrient solution, and routine maintenance mess.

Compact Closet Friendly Design

The approximately 3' x 3' footprint makes the DS90 particularly useful for closets, spare bedrooms, small grow rooms, utility spaces, apartments, and dedicated indoor garden corners.

Designed for Plants 50 cm to 150 cm Tall

Secret Jardin describes the Dark Street line as being suitable for plants approximately 50 cm to 150 cm tall. Actual plant height capacity depends on container height, fixture thickness, hanging hardware, required light clearance, filter placement, and training method.

Full Cycle Growing

The approximately 6 foot height makes the DS90 suitable for more than propagation. With appropriate equipment, it can support early growth, vegetative development, flowering, fruiting, and full cycle indoor gardening.

Recommended Setup Practices

• Read the Secret Jardin instructions before assembly.
• Assemble the frame on a clean and level surface.
• Confirm every 16 mm steel pole connection is properly seated.
• Make sure reinforced corner connectors are secure.
• Position the fabric enclosure carefully.
• Install the Water Tray before adding containers.
• Install the Space Booster before filling the enclosure.
• Route wiring using CableIT clips.
• Keep electrical connections elevated above the floor.
• Match lighting coverage to the 3' x 3' footprint.
• Keep intake and exhaust paths unobstructed.
• Support heavy filters appropriately.
• Maintain safe clearance between lighting fixtures and tent fabric.
• Follow all electrical and fire safety instructions.

Assembly Overview

A typical installation includes:

• Assemble the lower frame.
• Install the vertical Q195 steel poles.
• Assemble the upper frame.
• Confirm polypropylene corners are secure.
• Position the enclosure around the frame.
• Install Water Tray 90.
• Install the Space Booster.
• Position compatible WebIT or WebTH if used.
• Install lighting using HookIT.
• Install filtration using StrapIT when appropriate.
• Route cables using CableIT.
• Install PocketIT.
• Configure DF16 ventilation.
• Inspect the enclosure for visible light leaks.

Lighting Setup

When installing lighting:

• Select a fixture designed for approximately 3' x 3' coverage.
• Confirm the fixture fits inside the enclosure.
• Use secure hanging hardware.
• Maintain manufacturer recommended canopy clearance.
• Account for mature plant height.
• Keep drivers and electrical connections dry.
• Recheck fixture height throughout plant development.

Ventilation Planning

When configuring ventilation:

• Position exhaust equipment high in the enclosure when practical.
• Allow cooler intake air to enter lower in the tent.
• Use compatible DF16 components.
• Keep duct runs reasonably short.
• Minimize sharp bends.
• Match fan capacity to the lighting heat load.
• Use the Space Booster when negative pressure pulls the walls inward.

Internal Air Circulation

Circulation fans can help move air throughout the 3' x 3' canopy. Good airflow helps reduce stagnant areas, balance temperature, reduce localized humidity, move air beneath foliage, and improve environmental consistency.

Cable Management

Use the supplied CableIT clips to route lighting cables, fan wiring, controller cables, sensor wires, and monitoring equipment. Keep power connections away from standing water and do not overload electrical circuits.

Plant Arrangement

The 3' x 3' interior can support one central plant arrangement, multiple smaller containers, trellis managed plants, compact hydroponic systems, propagation trays, and mixed container sizes. Maintain enough room for air circulation, watering, inspection, equipment clearance, and safe cable routing.

Trellis Installation

When using compatible WebIT or WebTH systems: position the trellis at the appropriate canopy height, use the Space Booster for support, spread growth evenly, avoid excessive tension on the frame, maintain access around plants, and leave room beneath the canopy for airflow.

Cleaning & Maintenance

Routine Interior Cleaning

• Disconnect electrical equipment.
• Remove loose items when practical.
• Sweep or vacuum dry debris.
• Wipe the reflective interior using a soft cloth.
• Use mild soap when necessary.
• Avoid abrasive cleaners.
• Allow all surfaces to dry completely before reconnecting equipment.

Water Tray Cleaning

• Remove standing water.
• Remove soil and plant debris.
• Wipe or rinse the tray.
• Use mild soap if necessary.
• Allow the tray to dry fully.
• Inspect for punctures or damage.
• Reinstall it flat against the enclosure floor.

Reflective Interior Care

To preserve the reflective surface:

• Use a soft microfiber cloth.
• Remove dust regularly.
• Clean spills promptly.
• Avoid abrasive pads.
• Avoid stiff brushes.
• Do not use harsh solvents.
• Avoid dragging sharp objects against the lining.

Zipper and Fabric Care

• Keep zipper tracks clean.
• Open and close access panels smoothly.
• Avoid forcing jammed zippers.
• Keep fabric clear of moving zipper parts.
• Inspect seams periodically.
• Use PatchIT for suitable minor repairs.

Frame Inspection

• Inspect the 16 mm Q195 steel poles regularly.
• Confirm all corner connections remain secure.
• Check the Space Booster position.
• Verify hanging equipment remains safely mounted.
• Remove suspended equipment before frame repairs.

Port Maintenance

• Inspect DF16 openings periodically.
• Keep intake and exhaust paths free from debris.
• Support heavy ducting independently where practical.
• Keep cable ports dry.
• Close unused openings securely.

Space Booster Maintenance

• Confirm the Space Booster remains properly seated.
• Inspect attachment points.
• Adjust trellis tension when necessary.
• Keep sharp equipment away from the support structure.

Storage

• Remove lighting and ventilation equipment.
• Clean and fully dry the enclosure.
• Remove the Water Tray.
• Remove Space Booster and accessories.
• Disassemble the frame carefully.
• Keep poles and connectors together.
• Avoid sharply folding reflective fabric.
• Protect the interior from punctures.
• Store in a clean and dry location.
• Use the supplied shoulder strap carrying bag for storage and transport.

What's Included

• Secret Jardin Dark Street V4 90 Grow Tent
• M210D Reflective Tent Fabric
• Approximately 95% Reflective Interior
• 16 mm Q195 Steel Frame Poles
• Reinforced Polypropylene Corners
• Water Tray 90
• 1 Pair StrapIT Filter Straps
• 1 Pair HookIT Lighting Hooks
• 15 CableIT Clips
• 1 PocketIT Adjustable Tool Pouch
• 1 Space Booster
• 1 PatchIT Repair Accessory
• DF16 Compatible Ventilation System
• Carrying Bag with Shoulder Strap
• Assembly Components